DeepInelastic → PartonDistributions Relation

File in Physics/DeepInelastic	Includes file in Physics/PartonDistributions
XSection / BYPDF.h	PDFModelI.h
XSection / BYStrucFunc.h	PDFModelI.h
XSection / QPMDISStrucFuncBase.cxx	PDFModelI.h
XSection / QPMDISStrucFuncBase.h	PDF.h