Linux GUI support 1.0.58

• weston :343de341
• FreeRDP :c4030980
• pulseaudio:6f045ff0

Changes:

WSLg:

• WSLGDVCPlugin: Remove unused WSLG_INBOX #define.
• Documentation: Added DirectX headers step.
• Build: Remove logic to build and package .img disk images.
• Build: Add logic to publish symbols WSLDVCPlugin.dll.

Weston:

• rdp backend/rdprail shell: fix maximizing window disappear.