Updated THcCherenkov.cxx and h

Add new ntuple variables
goodAdcMult == the number of hits in raw ADc for that channel
goodAdcHitUsed == which hit number of the raw ADC hits passed the
                      the ADC time window cut

Modified fAdcTimeWindowMin  and fAdcTimeWindowMax to be arrays
  that are the size of the number of Cerenkov pmts.