Cuda on cpu working

CHANGELOG.md

CMakeLists.txt

cmake_modules/FindMETIS.cmake

cmake_modules/FindParMETIS.cmake

openfpm_data

openfpm_devices

openfpm_io

openfpm_numerics

openfpm_vcluster

src/CMakeLists.txt

src/Decomposition/Domain_icells_cart.hpp

src/Decomposition/cuda/Domain_icells_cart_unit_test.cu

src/Decomposition/cuda/decomposition_cuda_tests.cu

src/Grid/Iterators/grid_dist_id_iterator.hpp

src/Grid/cuda/grid_dist_id_kernels.cuh

src/Grid/tests/sgrid_dist_id_gpu_unit_tests.cu

src/Vector/cuda/vector_dist_comm_util_funcs.cuh

src/Vector/cuda/vector_dist_cuda_func_test.cu

src/Vector/cuda/vector_dist_cuda_funcs.cuh

src/Vector/cuda/vector_dist_gpu_MP_tests.cu