Build type information on first use (load-time), instead of using a hardcoded list

--HG--
branch : dynamiccore2

src/modules/graphics/wrap_Quad.cpp

@@ -28,7 +28,7 @@ namespace graphics
 
 Quad *luax_checkquad(lua_State *L, int idx)
 {
-	return luax_checktype<Quad>(L, idx, GRAPHICS_QUAD_ID);
+	return luax_checktype<Quad>(L, idx, Quad::type);
 }
 
 int w_Quad_setViewport(lua_State *L)
@@ -84,7 +84,7 @@ static const luaL_Reg w_Quad_functions[] =
 
 extern "C" int luaopen_quad(lua_State *L)
 {
-	return luax_register_type(L, GRAPHICS_QUAD_ID, "Quad", w_Quad_functions, nullptr);
+	return luax_register_type(L, Quad::type, "Quad", w_Quad_functions, nullptr);
 }
 
 } // graphics