Modifed hhodo_histos and phodo_histos

Add histograms for the difference between track
 projected to the chambers and scintillator position

Removed cut on beta histograms

goodstarttime is a flag. Not a time.
goodstarttime=1 means start_time was successfully
   calculated from focal plane.
goodstarttime=0 means its used a default value

Changed goodstartime histograms