TrkSegment → TrkDetDescr Relation

File in Tracking/TrkEventCnv/TrkEventTPCnv/src/TrkSegment	Includes file in Tracking/TrkDetDescr
TrackSegmentCnv_p1.cxx	TrkSurfaces / TrkSurfaces / Tracking/TrkDetDescr/TrkSurfaces/TrkSurfaces/Surface.h