Friend request callback #1485

    manager.Subscribe<SteamFriends.FriendsListCallback>(OnFriendsList);

    private static void OnFriendsList(SteamFriends.FriendsListCallback callback)
    {
        foreach (var friend in callback.FriendList.Where(friend => friend.Relationship == EFriendRelationship.RequestRecipient && friend.SteamID.AccountType == EAccountType.Individual))
        {
            Steam.Instance.Friends.AddFriend(friend.SteamID);
        }
    }