Sometimes Allegro doesn't look in enough places to find a resource. For those special cases, you can call
this function before loading your resource with additional paths to search for. You set up the
priorities, higher numbers are searched for first. To modify an already setup path, call this function
with the same priority and the new path. To remove an already setup path, call this function with the
priority of the path and NULL as the path parameter. Example:
set_allegro_resource_path(10, "my_game/configs");
set_allegro_resource_path(0, "users/configs/");
set_allegro_resource_path(-45, "temp");
These custom paths will be valid until you call allegro_exit(). You can call this function before
install_allegro(), but after set_uformat() if you want to use a text encoding format other than the
default.