TrkVKalVrtFitter → MagneticField Relation

File in Tracking/TrkVertexFitter/TrkVKalVrtFitter	Includes file in MagneticField
TrkVKalVrtFitter / TrkVKalVrtFitter.h	MagFieldConditions / MagFieldConditions / AtlasFieldCacheCondObj.h
TrkVKalVrtFitter / VKalAtlasMagFld.h	MagFieldElements / MagFieldElements / AtlasFieldCache.h