Refactoring

Cleaned up a project, removed uneccessary includes.
Fixed few errors, nothing major.

red_scarf_engine/src/main.c

@@ -15,5 +15,5 @@ int main(int argc, char** argv)
     rse_task_join(&graphics_task);
     rse_task_exit();
 
-
+    return 0;
 }