IVtk → NCollection Relation

File in src/IVtk	Includes file in src/NCollection
IVtk_IShapeData.hxx	NCollection_Vec3.hxx
IVtk_Types.hxx	NCollection_DataMap.hxx
IVtk_Types.hxx	NCollection_List.hxx
IVtk_Types.hxx	NCollection_Map.hxx