Fix mistake in Networking.CreateLobby - return early again if IsActive
Rename to Networking.SetData/GetData. Make Networking.Metadata internal, it wasn't supposed to be exposed. Add some extra documentation to Networking.SetData.
Change terminology elsewhere to match
Add support for map name - but have the setter internal now, keep it set automatically - remove old HostInfo that previously handled it so we dont have two different systems for this kind of thing