Integrate SignalR for game session management and clean up unused local game logic.

GUI/src/scripts/logic/signalR/GameConnection.ts

@@ -0,0 +1,13 @@
+import * as signalR from '@microsoft/signalr';
+
+class GameConnection{
+  public connection: signalR.HubConnection
+  constructor(gameSession: string) {
+    this.connection = new signalR.HubConnectionBuilder()
+      .withUrl(`/gameHub?gameSession=${gameSession}`)
+      .withAutomaticReconnect()
+      .build();
+  }
+}
+
+export default GameConnection;