PanTau → Generators Relation

File in Reconstruction/PanTau	Includes file in Generators
PanTauAlgs / PanTauAlgs / Tool_DetailsArranger.h	TruthUtils / TruthUtils / ParticleConstants.h
PanTauAlgs / Root / Tool_InputConverter.cxx	TruthUtils / TruthUtils / ParticleConstants.h