Rewrote Networking and Base Lobby Created

- Rewrote networking based on tutorials from MLAPI Demo Project and
  Dapper Dino
- Created Lobby UI based on the turorial from Dapper Dino
- Linked Existing UI into using the new networking
- Modified Lobby Settings to only allow 3 players
- Added Field for players to enter their player name

Assets/Scripts/Network/ConnectionPayload.cs

@@ -0,0 +1,9 @@
+using System;
+
+[Serializable]
+public class ConnectionPayload
+{
+    public string clientGUID;
+    public int clientScene = -1;
+    public string playerName;
+}