Implement the AI Processor selection on Apple M1/M2 or remove it

On Apple Silicon Macs, the user’s choice of CPU or “GPU” in the AI Processor setting appears to be ignored*. If Topaz don’t have control over whether CPU or GPU cores are used then they should remove those options on Apple Silicon Macs. Otherwise, they should respect the user’s choice and make it functional.

*If I’m mistaken, then apologies - I’d be most interested in a counterexample.