TrkExAlgs → DetectorDescription Relation

File in Tracking/TrkExtrapolation/TrkExAlgs	Includes file in DetectorDescription
TrkExAlgs / ExtrapolationValidation.h	GeoPrimitives / GeoPrimitives / GeoPrimitivesHelpers.h
TrkExAlgs / RiddersAlgorithm.h	GeoPrimitives / GeoPrimitives / GeoPrimitives.h