Merge remote-tracking branch 'STJr/angles' into ems-rebuild

CMakeLists.txt

SRB2.cbp

assets/CMakeLists.txt

cmake/Modules/FindSDL2.cmake

cmake/Modules/GitUtilities.cmake

src/CMakeLists.txt

src/Makefile

src/config.h.in

src/d_main.c

src/d_netcmd.c

src/dehacked.c

src/doomdef.h

src/g_game.c

src/hardware/hw_main.c

src/hardware/hw_md2.c

src/hardware/r_opengl/r_opengl.c

src/info.c

src/info.h

src/lua_hudlib.c

src/lua_maplib.c