Build 21354

For general Windows information on build 21354 visit the Windows blog.

• Switch the \wsl prefix to \wsl.localhost to avoid issues when there is a machine on the network named "wsl". \wsl$ will continue to work.
• Enable Linux quick access icon for wow processes.
• Update issue where version 2 was always being passed via wslapi RegisterDistribution.
• Change the fmask of the /usr/lib/wsl/lib directory to 222 so files are marked as executable [GH 3847]
• Fix wsl service crash if Virtual Machine Platform is not enabled.