Anisotropic denoiser crash on MacOS Mojave / Windows
Anisotropic denoiser module cannot be created on MacOS Mojave.
This seems due to the lack of GPU access / CUDA support on MacOS 10.14 Mojave. See https://devtalk.nvidia.com/default/topic/1042279/cuda-10-and-macos-10-14/ for details.
However, this should not cause the module to crash as CPU backend should work properly. There are at least two places to fix this issue - one global in VisNow checking CUDA availability, second in the very module trying to load CUDA-based libraries.