Denoising Module

Since ray tracing is now available for bigger scenes and meshes, it might be useful to look into denoising the image. For this there are multiple sources to potentially look into:

• https://github.com/GPUOpen-Effects/FidelityFX-Denoiser
• https://github.com/OpenImageDenoise/oidn
• https://github.com/NVIDIAGameWorks/RayTracingDenoiser
• https://github.com/nvpro-samples/vk_denoise

I assume the FidelityFX-Denoiser shaders should be most interesting because they are published under MIT license matching the framework.