ParticleCaloExtension → Calorimeter Relation

File in Reconstruction/RecoEvent/ParticleCaloExtension	Includes file in Calorimeter
ParticleCaloExtension / ParticleCellAssociation.h	CaloEvent / CaloEvent / CaloCell.h
ParticleCaloExtension / ParticleCellAssociation.h	CaloEvent / CaloEvent / CaloCellContainer.h