Refactoring the array operations.

install

src/core/arrays/tnlArrayOperations.h

src/core/tnlCuda.h

src/implementation/core/CMakeLists.txt

...implementation/core/arrays/tnlArrayOperationsCuda_impl.cu

src/implementation/core/arrays/tnlArrayOperationsCuda_impl.h

src/implementation/core/arrays/tnlArrayOperationsHost_impl.h

src/implementation/core/cuda/cuda-reduction_impl.h

src/implementation/core/tnlCuda_impl.h

tests/unit-tests/CMakeLists.txt

tests/unit-tests/core/arrays/tnlArrayOperationsTester.h

tests/unit-tests/core/cuda/CMakeLists.txt

tests/unit-tests/core/cuda/memory-operations-test.cu

tests/unit-tests/core/cuda/tnlCudaMemoryOperationsTester.h

tests/unit-tests/core/cuda/tnlCudaReductionTester.h

tests/unit-tests/core/vectors/tnlVectorOperationsTester.h