Denoiser doesn't use RT preset with OpenImageDenoise

[caiowakamatsu]

In OidnBinaryDenoiser, the command line arguments don't use the RT preset that OIDN supplies in the native API. The RT preset allows you to use a different denoising method that's better suited for ray / path tracing.

Possible solutions: Create a small wrapper of OIDN for chunky, to allow for you to set the denoising filter.

[leMaik]

The default filter type in the denoiser binary is already RT: https://github.com/OpenImageDenoise/oidn/blob/master/apps/oidnDenoise.cpp#L81