[enhancement] New Epic online services SDK support

[Apollo144]

Hi guys!
Epic just launched free online services.
Imo it would be awesome for Gideros to support their SDK.
Thx!
https://dev.epicgames.com/en-US/services
https://www.unrealengine.com/en-US/blog/epic-s-free-online-services-launch-for-all-game-developers