Update GameSubType.cs
Update GameSubType.cs

Added URF and URF_BOT Games.
aktai0/RiotSharp,Challengermode/RiotSharp,jessehallam/RiotSharp,jono-90/RiotSharp,florinciubotariu/RiotSharp,RodrigoArantes23/RiotSharp,JanOuborny/RiotSharp,frederickrogan/RiotSharp,BenFradet/RiotSharp,Shidesu/RiotSharp,Oucema90/RiotSharp,oisindoherty/RiotSharp,Qinusty/RiotSharp