Proton Experimental fixes Crysis, CEG-protected games, adds early 32bit OpenXR support

Valve released a new Proton Experimental update for running Windows games on Linux and SteamOS. It fixes a regression that made CEG-protected games unplayable, restores Crysis and Crysis Wars on newer AMD CPUs with CPUID faulting, and adds early 32bit OpenXR support.

• Fixed a regression that made CEG-protected games unplayable
• Crysis and Crysis Wars work again on newer AMD CPUs with CPUID faulting
• Added early 32bit OpenXR support (requires PROTON_USE_WOW64=1)
• Also fixed rendering in Return to Krondor and Japanese text in Killer7