Add changes for supporting Kokkos/HIP
Some of the unit tests for serial and kokkos are disable for hipcc to properly compile. VTKM_MATH_ASSERT and VTKM_TEST_ASSERT fail to compile with HIP in execution environment so they are disabled with building with HIP. Kokkos::finalize is causing error so it is temporarily disabled. CellLocator and PointLocator are disabled. ExtractGeometry and ClipWithImplicitFunction are disabled.