Deferred patch updating

src/hardware/hw_cache.c

src/hardware/hw_drv.h

src/hardware/hw_glob.h

src/hardware/r_opengl/r_opengl.c

src/lua_hudlib.c

src/r_defs.h

src/r_patch.c

src/r_patch.h

src/r_picformats.c

src/sdl/hwsym_sdl.c

src/sdl/i_video.c

src/v_video.c