Made the project artifact friendly

Can now be build using IntelliJ artifacts

Client/src/Launcher.java

@@ -0,0 +1,7 @@
+import game.TicTacToe_Client;
+
+public class Launcher {
+    public static void main(String[] args) {
+        TicTacToe_Client.main(args);
+    }
+}