Refactored to be controller centric; added message buss pattern with early support eent types

scripts/controllers/game_system/game_controller.gd

@@ -0,0 +1,15 @@
+class_name GameController extends BaseController
+
+
+func _controller_message(event: BaseEvent) -> void:
+	if event is GameReadyEvent:
+		handle_game_ready_event()
+
+func handle_game_ready_event() -> void:
+	controller_message_bus.message.call(
+		CreateAlliesJetEvent.new()
+	)
+
+	controller_message_bus.message.call(
+		CreateAxisJetEvent.new()
+	)