Updating GenFilterTool for derivations

One of the truth generator filter variables (HT including neutrinos) was missing in release 22. This brings forward the variable definition from release 21.2. At the same time I tried to catch a couple of consistency things within the cxx.

PhysicsAnalysis/DerivationFramework/DerivationFrameworkMCTruth/src/GenFilterTool.cxx

@@ -31,9 +31,7 @@ namespace DerivationFramework {
 
     switch(orig) {
     case ParticleOrigin::WBoson:
-      return true;
     case ParticleOrigin::ZBoson:
-      return true;
     case ParticleOrigin::TauLep:
       return true;
     default: