Merge #177

177: gfx-rs update and multiple submissions r=msiglreith a=kvark

~~I wanted to get the Diligent Engine running, eventually got blocked by gfx-rs/gfx#2676
Gets us full Diligent Engine compatibility 🎉 

Co-authored-by: Dzmitry Malyshau <[email protected]>

Author: bors[bot]