2D patch rotation

src/hardware/Sourcefile

src/hardware/hw_bsp.c

src/hardware/hw_defs.h

src/hardware/hw_draw.c

src/hardware/hw_main.c

src/hardware/hw_main.h

src/hardware/hw_splitpoly.c

src/hardware/hw_splitpoly.h

src/lua_hudlib.c

src/v_video.c

src/v_video.h