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/PlayerData.cs

@@ -0,0 +1,11 @@
+public struct PlayerData {
+
+    public string PlayerName { get; private set; }
+    public ulong ClientId { get; private set; }
+
+    public PlayerData(string playerName, ulong clientId)
+    {
+        PlayerName = playerName;
+        ClientId = clientId;
+    }
+}