Migrating CMake from FindCUDA to FindCUDAToolkit

[jakirkham]

It looks like prismatic is still using CMake's FindCUDA

prismatic/CMakeLists.txt

Lines 140 to 145 in 9f205d0

	# find CUDA package, if building for GPU
	if (PRISMATIC_ENABLE_GPU)
	message("GPU support enabled")
	find_package(CUDA REQUIRED)
	set(CUDA_NVCC_FLAGS ${CUDA_NVCC_FLAGS} ${NVCC_FLAGS_EXTRA})
	endif(PRISMATIC_ENABLE_GPU)

However FindCUDA is deprecated

The current recommendation is to use CUDA as a language via enable_language(CUDA)

Also FindCUDAToolkit is recommended for finding CUDA Toolkit components