This Asset is Free, with the option to buy
Everything is available on pastebin here, or you can get it on github
You can go ahead and get this extension from there, and if you like it feel free to support me by buying the extension from this page ( basically buy me a coffee ), which gives you the added convenience of installing it directly into your projects.
Summary
This is three very simple scripts to help you got some responsive design elements built into your game.
Watch my youtube video to see exactly how this script works and see if it will work for you.
End User Licence Agreement (EULA).