MuonTruthAlgs → MuonIdHelpers Relation

File in MuonSpectrometer/MuonTruthAlgs/MuonTruthAlgs	Includes file in MuonSpectrometer/MuonIdHelpers
MuonPRD_MultiTruthMaker.h	MuonIdHelpers / IMuonIdHelperSvc.h
MuonTrackTruthTool.h	MuonIdHelpers / IMuonIdHelperSvc.h