Merge branch 'develop' into feature/36-level-design

mirrage @ cb6eadc2

-Subproject commit e4f5314a25e5a7ea821819e9d6471acf16af99fd
+Subproject commit cb6eadc2c7376ca1651c648fe196d0087658d738

src/game_engine.cpp

@@ -82,7 +82,7 @@ namespace phase_shifter {
 		_global_render->draw();
 		_renderer_factory->finish_frame();
 
-		_global_render->device().wait_idle();
+		//_global_render->device().wait_idle();
 	}
 
 } // namespace phase_shifter