Give us a Steamworks Friend constructor that takes in a ulong

[matekdev]

What it is?

In both Connection, and LobbyInformation SteamId has type ulong (I imagine in other places as well). The steamworks Friend constructor only has an option for long but then immediately casts it into a ulong.

internal Friend(Steamworks.Friend value)
{
    Internal = value;
}

internal Friend(SteamId value)
{
    Internal = new Steamworks.Friend(value);
}

public Friend(long steamid)
{
    Internal = new Steamworks.Friend((ulong)steamid);
}

What should it be?

Give us a constructor for Steamworks Friend that takes in a ulong.