This includes a particularly nasty leak in the shower code that caused
several hundred bytes to be lost _per event_.

1) THcDCWire.h
  a) added sigma to THcDCWire constructor which fills fSigmaWire
  b) added GetSimga method
  c) added SetSigma method

2) THcDCHit.h
 a) Added GetWireSigma method

3) THcDriftChamberPlane.h
 a) Added flag fUsingSigmaPerWire
 b) Added array fSigmaWire

4) THcDriftChamberPlane.cxx
 a) In ReadDatabase, set fUsingSigmaPerWire=0 by default
    with reading of parameter h_using_sigma_per_wire optional
    for setting fUsingSigmaPerWire.
 b) If fUsingSigmaPerWire=0 then sets all wires in array fSigmaWire to
   fSigma ( which is the simga per plane).
 c) If fUsingSigmaPerWire=1 then reads in the sigma per wire from
   a parameter file.
 d) Used new THcDCWire constructor to set the sigma for wire to fSigmaWire[nwire]
 e) Also change code so that the tzero offset is set in the  THcDCWire constructor
 f) In ProcessHits , use wire->GetTOffSet instead of the fTzeroWire array when setting
    the time.

5) THcDC.cxx
 a) In TrackFit, replace fSigma with hit->GetWireSigma()

THcSpacePoint
  1) added fSetStubFlag which is intialized
     to kFALSE in constructor and set to kTRUE
     when SetStub is called.
   2) added method GetSetStubFlag which
      returns fSetStubFlag.

THcDriftchamber
   1) In ProcessHits increased fHits reserve to 40
   2) In FindSpacePoints use fSpacePoints->Delete();
   3) In LeftRight ,only SetStub if the Stub is fit.

THcDC
   1) In LinkStubs
      a) only link stubs if number of total spacepoints <10
      b) only link stubs if both spacepoints have SetStubFlag true

THcDCHit.h
   1) In constructor initalize fLR to 0

THcDCTrack.cxx
   1) AddSpacePoint check if fnSP < 10

THcDriftChamberPlane

  1) Remove subtraction of hodoscope starttime from ProcessHits
    which is called by THcDC::Decode.
  The hodoscope start time is determined in hodoscope Decode
   which is called after THcDC::Decode. So drift chamber
   was using the starttime from the previous event.

   2) Create method SubtractStartTime which is called by THcDC:CoarseTrack

THcDriftChamber
    1) Move fChambers[ic]->ProcessHits() to CoarseTrack
    2) Before looping through fChambers[ic]->ProcessHits() in CoarseTrack
        loop through all planes and call fPlanes[ip]->SubtractStartTime()

Modify THcDCTrack::TrackFit to calculate residuals for each plane
   without the plane involved in the track.

Add tree variable residualExclPlane

Modified THcSpacePoint.h to have public member that keeps track
   of the spacepoint ID number for each chamber.
   Used in THcDC::LinkStubs

Modified THcDC.cxx and h
1) Add tree variables sp1_id and sp2_id which are the integer
    ID in the spacepoints in each chamber used in the golden track.
     The ID refers to index in array of spacepoints created in
     THcDriftChamber.cxx

2) Modify LinkStub to fill sp1_id and sp2_id for each track

3) For golden track fill sp1_ID_best and sp2_ID_best

  So that the counts can be reported in report files.

   First hit above this cut is taken as the reference time.
   Cuts are per detector and read as an optional parameter in
   each detector class.  TDCs and Flash ADC times have separate cuts.

Implement a second method of selecting best reference time.
  If InitHitList is passed a possitive reference time cut,
    use the first reference time above that cut.  If none of the
    hits pass the cut, then no reference time is set
  If InitHitList is passed a negative cut, the cut is taken to be
    the absolute value of the cut, but a reference time is garuanteed
    to be set as long as there is at least one reference time hit.
    If none of the reference time hits pass the cut, then the last
    hit is taken to be the reference time.  (Should be the largest.)

Allow reference time cuts for all the spectrometer detector classes
  Hodoscopes, drift chambers, Aerogels, Gas Cherenkovs, Calorimeters

  Add End method to each detector that calls MissReport which
  prints the number of events with missing TDC and ADC reference times.

  Each detector object will check the global variable X.present each
  event.  If X.present is false, it indicates that the parent
  spectrometer object determineted that this spectrometer is not in
  this event, and therefor reference times are not expected.  If
  X.present is false, then the reference time warning messages will
  be suppressed.

Add leaf dc.chisq which is the chisquared/dof of the golden track.

Set fHMSStyleChambers =1 according to dc_version parameter.
If no dc_version parameter loaded defaults to old HMS style chambers

1) Add X,Y offsets parameter for each plane, instead of X,Y offset per chamber
2) ModifyTHcDriftChamber::CorrectHitTimes to work with SHMS chambers
3) Add GetReadoutSide method to THcDCHit class.

Main purpose is to calculate the DC efficiency per wire
using the track information of the golden track.


THcDC.h
-----------
1) add method EfficiciencyPerWire
2) Add variables fWire_hit_did and fWire_hit_should

THcDC.cxx
------------
1) fWire_hit_did and fWire_hit_should are fixed length arrays
   the size of NPlanes that in set in method Init
2) Add variables wireHitDid and wireHitShould to the tree
3) In method SetFocalPlaneBestTrack add call to EfficiencyPerWire method
4) added EfficiencyPerWire method which loops over the hits
    and compares the wire number for the hit to the the track
    position at the plane (convert back to wire number).
    Then fills fWire_hit_did with the wire number if
    equal to the wire position of the hit equals the track.
    Also does loop over all planes and fills fWire_hit_should
    with the wire number of the track in each plane.

THcDriftChamberPlane.h and cxx
---------------------
1) Added method CalcWireFromPos

The purpose is to add a call in THcHallCSpectrometer:TrackCalc
to fill variables in THcDC for the golden track.

THcHallCSpectrometer.h
----------------------
1) Add object THcDC* fDC
2) Eliminate object fShower since it was not being used.

THcHallCSpectrometer.cxx
----------------------
1) in ReadDatabase method cast fDC in detector "dc" is defined
2) in FindVertices method add call
    to fDC->SetFocalPlaneBestTrack(hit_gold_track)
    where hit_gold_track is the HaTracks array index
    of the golden track

THcDC.h
-------
1) Add method SetFocalPlaneBestTrack

THcDC.cxx
---------
1) Eliminate filling of best focal plane quantities
   in CoarseTrack which defined "best" by lowest chi2
2) Create method SetFocalPlaneBestTrack
   a)fills the best focal plane quantities using the golden track
   b) fills fResiduals using golden track

Add variables fX_fp_best,fY_fp_best,fXp_fp_best,fYp_fp_best to THcDC.h
Modified THcDC::CoarseTrack so that the variables are filled with the
quantities from the track with the smallest chi-squared.
Modified THcDC::TrackFit so that the fResidual per plane is filled with
for the track with the lowest chi-squared.
Modified THcDC::DefineVariables so that access the variables as
dc.x_fp,dc.y_fp,dc.xp_fp and dc.yp_fp

Applied changes in several files to reflect this.
Minor fix in `THcRawHodoHit`.

When calculating the residuals, consider all track candidates instead of only the first track.  Moreover, eliminate the instances when there was no hit in a plane then the residual was returned as zero.

  Otherwise InitHistlist doesn't have the detector map
  and can't do setup of reference time stuff or sanity checks on the
  detector mapping

Some detector classes lacked the ability to get the appropriate
Apparatus character and were only working for HMS.

  Modify THcFormula and THcParmList to match changes to THaFormula
     (needed for reports)
  Small changes in THcInterface and detector classes for compatibility
     with new OO decoder and podd 1.6

  When it was UInt_t, variable length global variables didn't get the
  length correctly and there were run time errors.

  For the most part this is making sure that the loop variable in
  a for loop is of the same type as the variable that it is compared
  against (Often a UInt_t).

This reverts commit e9ce1040.

Conflicts:
	src/THcHallCSpectrometer.cxx

  For the most part this is making sure that the loop variable in
  a for loop is of the same type as the variable that it is compared
  against (Often a UInt_t).

Found when doing valgrind --tool=memcheck --track-origins=yes --leak-check=full hcana
Return errors like below
==14467== Invalid write of size 1
==14467==    at 0x4A0794F: __GI_strcpy (mc_replace_strmem.c:313)
==14467==    by 0x57137A3: THcHodoscope::Setup(char const*, char const*) (THcHodoscope.cxx:112)
==14467==    by 0x5713A7E: THcHodoscope::Init(TDatime const&) (THcHodoscope.cxx:142)
==14467==    by 0x4D38C29: THaApparatus::Init(TDatime const&) (THaApparatus.C:193)
==14467==    by 0x4D67E57: THaAnalyzer::InitModules(TList const*, TDatime&, int, char const*) (THaAnalyzer.C:433)
==14467==    by 0x4D68B1F: THaAnalyzer::DoInit(THaRunBase*) (THaAnalyzer.C:667)
==14467==    by 0x4D68126: THaAnalyzer::Init(THaRunBase*) (THaAnalyzer.C:467)
==14467==    by 0x4D6B31A: THaAnalyzer::Process(THaRunBase*) (THaAnalyzer.C:1289)
==14467==    by 0x4E21E97: G__haDict_704_0_6(G__value*, char const*, G__param*, int) (haDict.C:23491)
==14467==    by 0x6DB6148: Cint::G__ExceptionWrapper(int (*)(G__value*, char const*, G__param*, int), G__value*, char*, G__param*, int) (in /u/apps/root/5.34.13/root/lib/libCint.so.5.34)
==14467==    by 0x6E5A3A0: G__execute_call (in /u/apps/root/5.34.13/root/lib/libCint.so.5.34)
==14467==    by 0x6E5B201: G__call_cppfunc (in /u/apps/root/5.34.13/root/lib/libCint.so.5.34)
==14467==  Address 0xd7636a2 is 0 bytes after a block of size 2 alloc'd
==14467==    at 0x4A0674C: operator new[](unsigned long) (vg_replace_malloc.c:305)
==14467==    by 0x5713757: THcHodoscope::Setup(char const*, char const*) (THcHodoscope.cxx:111)
==14467==    by 0x5713A7E: THcHodoscope::Init(TDatime const&) (THcHodoscope.cxx:142)
==14467==    by 0x4D38C29: THaApparatus::Init(TDatime const&) (THaApparatus.C:193)
==14467==    by 0x4D67E57: THaAnalyzer::InitModules(TList const*, TDatime&, int, char const*) (THaAnalyzer.C:433)
==14467==    by 0x4D68B1F: THaAnalyzer::DoInit(THaRunBase*) (THaAnalyzer.C:667)
==14467==    by 0x4D68126: THaAnalyzer::Init(THaRunBase*) (THaAnalyzer.C:467)
==14467==    by 0x4D6B31A: THaAnalyzer::Process(THaRunBase*) (THaAnalyzer.C:1289)
==14467==    by 0x4E21E97: G__haDict_704_0_6(G__value*, char const*, G__param*, int) (haDict.C:23491)
==14467==    by 0x6DB6148: Cint::G__ExceptionWrapper(int (*)(G__value*, char const*, G__param*, int), G__value*, char*, G__param*, int) (in /u/apps/root/5