Implemented Workshop Item Subscription Added subscribing to items as well as the UGC interfaces GetNumSubscribedItems and GetSubscribedItems. Edited SteamUGC Method GetSubscribedItems to accept array instead of a ptr to allow c# calling Updated from feedback given Removed GetSubscribedItems, could not find a nice way to change to property Merge pull request #44 from moldfield1995/master Implemented Workshop Item Subscription