Update default e-lifetime in reco to 35 ms as the run1 e-lifetime study by Sungbin shows

Author: linyan-w

sbndcode/Utilities/detectorproperties_sbnd.fcl

@@ -5,7 +5,7 @@ BEGIN_PROLOG
 sbnd_detproperties:                   @local::standard_detproperties
 sbnd_detproperties.Temperature:       88.4  # measured in ArgoNeut (MicroBooNE measured 89K, arXiv:1910.01430)
 sbnd_detproperties.Efield:           [0.5,0.666,0.8]  #reasonable values 
-sbnd_detproperties.Electronlifetime:  100.0e3  # microseconds
+sbnd_detproperties.Electronlifetime:  35.0e3  # microseconds
 sbnd_detproperties.ElectronsToADC:    6.29778e-3 
 sbnd_detproperties.TimeOffsetU:       0.
 sbnd_detproperties.TimeOffsetV:       0.