xAODParticleEvent → xAODEgamma Relation

File in Event/xAOD/xAODParticleEvent/xAODParticleEvent	Includes file in Event/xAOD/xAODEgamma
versions / CompositeParticle_v1.h	xAODEgamma / Event/xAOD/xAODEgamma/xAODEgamma/Electron.h
versions / CompositeParticle_v1.h	xAODEgamma / Event/xAOD/xAODEgamma/xAODEgamma/Photon.h