bug, correct const function

NonLinearSolver/Domain/partDomain.cpp

NonLinearSolver/Domain/partDomain.h

NonLinearSolver/internalPoints/ipField.cpp

NonLinearSolver/internalPoints/ipField.h

NonLinearSolver/internalPoints/ipstate.cpp

NonLinearSolver/internalPoints/ipstate.h

NonLinearSolver/materialLaw/mlaw.h

dG3D/src/dG3DCohesiveMaterialLaw.cpp

dG3D/src/dG3DCohesiveMaterialLaw.h

dG3D/src/dG3DDomain.cpp

dG3D/src/dG3DDomain.h

dG3D/src/dG3DHomogenizedTangentTerms.cpp

dG3D/src/dG3DMultiscaleMaterialLaw.cpp

dG3D/src/dG3DMultiscaleMaterialLaw.h

dG3D/src/dG3DTerms.cpp

dG3D/src/multipleFieldDG3DTerms.cpp

dG3D/src/pathFollowingTerms.cpp

dgshell/src/dgC0ShellTerms.cpp

dgshell/src/dgNonLinearShellTerms.cpp

dgshell/src/dgShellDomain.h