ConstitutiveRelations → BaseLib Relation

File in ProcessLib/SmallDeformation/ConstitutiveRelations	Includes file in BaseLib
SmallDeformation/ConstitutiveRelations/Base.h	StrongType.h
SmallDeformation/ConstitutiveRelations/Gravity.h	StrongType.h
SmallDeformation/ConstitutiveRelations/SolidDensity.h	StrongType.h