Fixed a bug were keycards would not draw on the UI.

UI rendering now moved over to Unity. Enabled Vulkan, disabled D3D11.

Skybox is now set to black on startup and state back to title screen.

Fixed z-fighting sprites. UV's are not updated unless the UV's change.

Fixes for sky and package builds.

Fixed a bug with ifcanseetarget returning incorrect results.

Added missing code from previous CL.

Temp fixes to ensure flying liztroops work.