Add 001 game creator

[MichaelHinrichs]

SteamDB app page links to a few games using this

https://steamdb.info/app/658890/ https://steamdb.info/app/731870/ https://steamdb.info/app/1222840/ https://steamdb.info/app/1272200/ https://steamdb.info/app/1511950/ https://steamdb.info/app/1551830/ https://steamdb.info/app/1572320/ https://steamdb.info/app/1574800/ https://steamdb.info/app/1886270/ https://steamdb.info/app/2105880/ https://steamdb.info/app/2107170/ https://steamdb.info/app/2442710/

Brief explanation of the change

Find 001 game creator by it's 1RC file type.