two way coupling 3D validations and performancebenchmark working correctly on CPU and GPU

...lTransport/two_way_coupling/3D_Validations/CMakeLists.txt

...alTransport/two_way_coupling/3D_Validations/MTWCodegen.py

...ort/two_way_coupling/3D_Validations/MaterialTransport.cpp

...alTransport/two_way_coupling/3D_Validations/benchmark.prm

...port/two_way_coupling/performancebenchmark/CMakeLists.txt

...o_way_coupling/performancebenchmark/MaterialTransport.cpp

...sport/two_way_coupling/performancebenchmark/benchmark.prm

...arks/MaterialTransport/utilities/InitializerFunctions.cpp