CDM → TCollection Relation

File in src/CDM	Includes file in src/TCollection
CDM_Document.hxx	TCollection_ExtendedString.hxx
CDM_MetaData.hxx	TCollection_ExtendedString.hxx
CDM_MetaDataLookUpTable.hxx	TCollection_ExtendedString.hxx
CDM_PresentationDirectory.hxx	TCollection_ExtendedString.hxx