Add SAGE (Strategy Action Game Engine)

[MichaelHinrichs]

Some reference to the engine, such as the developer site or a wikipedia article.

https://en.wikipedia.org/wiki/SAGE_(game_engine) https://www.moddb.com/engines/sage-strategy-action-game-engine https://cnc.fandom.com/wiki/Strategy_Action_Game_Engine

SteamDB links

https://steamdb.info/app/17480/ https://steamdb.info/app/24790/ https://steamdb.info/app/24800/ https://steamdb.info/app/24810/ https://steamdb.info/app/47700/ https://steamdb.info/app/1213210/

Possible way to detect it

If i knew how to do that, i would have done it myself.