Add a map-loader sctipt

scenes/utils/Menu.tscn

@@ -43,6 +43,13 @@ offset_right = 497.0
 offset_bottom = 220.0
 text = "192.168.0.28"
 
+[node name="Maps" type="ItemList" parent="."]
+layout_mode = 0
+offset_left = 995.0
+offset_top = 111.0
+offset_right = 1595.0
+offset_bottom = 624.0
+
 [connection signal="player_connected" from="." to="." method="_on_player_connected"]
 [connection signal="player_disconnected" from="." to="." method="_on_player_disconnected"]
 [connection signal="server_disconnected" from="." to="." method="_on_server_disconnected"]