Set up controller classes for lobby and host. Made changes to TitleController and MainController. Title screen can now enter lobby and host.

#story[1087]

racevisionGame/src/main/java/visualiser/Controllers/LobbyController.java

@@ -0,0 +1,29 @@
+package visualiser.Controllers;
+
+import javafx.fxml.FXML;
+import javafx.scene.layout.AnchorPane;
+
+import java.net.URL;
+import java.util.ResourceBundle;
+
+/**
+ * Created by zwu18 on 25/07/17.
+ */
+public class LobbyController extends Controller {
+
+    @FXML
+    AnchorPane lobbyWrapper;
+
+    @Override
+    public void initialize(URL location, ResourceBundle resources) {
+
+    }
+
+    public AnchorPane startWrapper(){
+        return lobbyWrapper;
+    }
+
+    public void enterLobby(){
+        lobbyWrapper.setVisible(true);
+    }
+}