Rend2

[SomaZ]

So, this is a working version of a fork of the ioquake3 renderer2 for the Jedi Academy Multiplayer. This is still WIP, but all the essential vanilla renderer features are implemented.

Enabling the renderer via comandline: "cl_renderer rd-rend2;vid_restart"

Pull request currently includes:

• rend2 renderer
• fix for the github actions linux x86 build (not needed anymore and removed)
• fixes for compiling the mp vanilla and dedicated renderers without gore
• correct sdl includes

Special thanks to following people: @SmileTheory for the original renderer2 @eezstreet and @ensiform for their effort in porting the renderer to Jedi Academy @xycaleth for writing nearly all the new essential parts of the renderer

[SomaZ]

I tested it and works well, I think Somaz said something was missing from my screenshot but I don't think it was something major

I was thinking I did something stupid with the hdr ambient lighting from the lightgrid, but it turns out everything is fine from the code perspective. Just did something stupid in blender when baking the lightgrid.