TrkPrepRawData → DetectorDescription Relation

File in Tracking/TrkEvent/TrkPrepRawData/TrkPrepRawData	Includes file in DetectorDescription
PrepRawData.h	GeoPrimitives / GeoPrimitives / GeoPrimitives.h
PrepRawDataCollection.h	Identifier / Identifier / Identifiable.h
PrepRawDataCollection.h	Identifier / Identifier / IdentifierHash.h