Jenkins and interop header

[jrmadsen]

• Jenkins for HIP, CUDA, CUDA-UVM
• moved ^/pybind11 to ^/external/pybind11
• Added -Wno-attributes
• KokkosExp_InterOp.hpp
• Warning if NVCC + GCC 8.x + pybind11 (fails to compile)
• Set ENABLE_LAYOUTS=ON by default with CUDA
• Disable Kokkos_ENABLE_CUDA_CONSTEXPR=ON by default when building kokkos as submodule
• FIND_PACKAGE(Kokkos REQUIRED) --> FIND_PACKAGE(Kokkos REQUIRED COMPONENTS launch_compiler)
• Disable CMAKE_UNITY_BUILD by default with CUDA
• Removed ENABLE_ALL option
• Updated ex-generate.cpp to use Kokkos::Experimental::as_python_type and Kokkos::Experimental::python_view_type_t<view_type>
• modify_view function in user bindings example
• Added get_host_accessible(<memory-space>) function for python
  • returns whether the data can be accessed directly in python
• Cleaned up ex-numpy.py
• uniform_view_type_t -> kokkos_python_view_type_t
• fix to DynRankView shape when ENABLE_VIEW_TRAITS != 7
• View/DynRankView bindings have ndim property
• removed calling kokkos.finalize() in kokkos/test/tools.py
• scripts/docker/Dockerfile.{hipcc,nvcc,openmptarget,sycl}
• setup.py --enable-view-ranks=N option
• Handle PYTHON_INCLUDE_DIR and PYTHON_LIBRARY via scikit-build to Python3_INCLUDE_DIR and Python3_LIBRARY