xAODTau → xAODTruth Relation

File in Event/xAOD/xAODTau	Includes file in Event/xAOD/xAODTruth
xAODTau / TauxAODHelpers.h	xAODTruth / Event/xAOD/xAODTruth/xAODTruth/TruthParticle.h
xAODTau / TauxAODHelpers.h	xAODTruth / Event/xAOD/xAODTruth/xAODTruth/TruthParticleContainer.h