Merge pull request #892 from SBNSoftware/feature/CAF_fcl_for_MeVPRTL

New CAF stage fcl for MeVPrtl generator

Author: nathanielerowe

sbndcode/JobConfigurations/standard/caf/cafmakerjob_sbnd_sce_and_fluxwgt_and_g4rw.fcl

@@ -0,0 +1,4 @@
+#include "cafmakerjob_sbnd_sce.fcl"
+
+physics.runprod: [rns, fluxweight, geant4weight, @sequence::physics.runprod]
+physics.producers.cafmaker.SystWeightLabels: [ "fluxweight", "geant4weight" ]