Everything in here is highly unstable and may not work.
Current commit contains various new features for the HUD, some cleanup, and additional changes for compatibility with Doomreal as it is developed.
The diff is kinda fucky on the font restructure due to flaky rename detection.
Implemented proper HUD rendering, along with toggling and resizing. Works just like in UT now.
Added "extended" version of the Beta menu music, quickly put together in OpenMPT. I really like it.
Added M_DOOM graphic and changed the titlemap texture.
Made various screen graphics additive now that I know how to.
Separated pickup and first person brightmaps for Pulse Gun, this is needed for beta skin packs (there will be skins for the Pulse Gun, Redeemer and Impact Hammer).
