modify multiple Fields

NonLinearSolver/Domain/partDomain.cpp

NonLinearSolver/Domain/partDomain.h

dG3D/benchmarks/fullTwoField_PRI6/twoHole.py

dG3D/benchmarks/multiscaleAdhesiveTest2D/model.py

dG3D/benchmarks/multiscaleCohesiveTest2D/model.py

dG3D/benchmarks/multiscaleCohesiveTest2D_mixedMode/model.py

...enchmarks/multiscaleCohesiveTest2D_tangentByPert/model.py

dG3D/benchmarks/multiscaleCohesiveTest2D_unloading/model.py

...hmarks/multiscaleCohesiveTest2D_unloadingElastic/model.py

dG3D/benchmarks/twoField_HEX8_PRI6/twoHole.py

dG3D/benchmarks/twoField_PRI6/twoHole.py

dG3D/benchmarks/twoField_TET4/twoHole.py

dG3D/src/dG3DDomain.cpp

dG3D/src/multipleFieldDG3DTerms.h