PileUpComps → StoreGate Relation

File in Control/PileUpComps	Includes file in Control/StoreGate
src / BkgStreamsCache.cxx	StoreGate / StoreGateSvc.h
src / NoPileUpMuWriter.cxx	StoreGate / StoreGate/StoreGate/WriteDecorHandle.h
src / NoPileUpMuWriter.h	StoreGate / StoreGate/StoreGate/WriteDecorHandleKey.h
src / PileUpEventLoopMgr.cxx	StoreGate / StoreGateSvc.h