Most of this was taken from #159. This does not include the API addition of adding a topmost call on Window.
That should probably be in another PR. And the doc fixes as well.
Used implementation from https://github.com/emoon/rust_minifb/pull/159#discussion_r401374050
Co-authored-by: phillvancejr <phillipvancejr@gmail.com>
Co-authored-by: Daniel Collin <daniel@collin.com>
Co-authored-by: phillvancejr <phillipvancejr@gmail.com>
Co-authored-by: Daniel Collin <daniel@collin.com>
