HydroMechanics → Common Relation

File in ProcessLib/HydroMechanics	Includes file in ProcessLib/Common
HydroMechanics/CreateHydroMechanicsProcess.cpp	HydroMechanics / CreateInitialStress.h
HydroMechanics/HydroMechanicsProcessData.h	HydroMechanics / InitialStress.h