Proposed Chromium Switches for Backends

Platform	Chromium Command Line Switches	Fast	Sustained	Low	Ultra-Low
Windows	--use-dml	DNNL	DirectML	DirectML
Windows	--use-inference-engine	IE-MKLDNN	IE-clDNN	IE-MYRIAD	IE-GNA
Windows	w/o --use-dml or --use-inference-engine	DNNL	clDNN
Linux	--use-inference-engine	IE-MKLDNN	IE-clDNN	IE-MYRIAD	IE-GNA
Linux	w/o --use-inference-engine	DNNL	clDNN
macOS	--use-dnnl	DNNL	MPS
macOS	w/o --use-dnnl	BNNS	MPS