load jets to a collection; wire up cpu controller pattern

scripts/controllers/cpu_system/cpu_controller.gd

@@ -0,0 +1,18 @@
+class_name CPUController extends BaseController
+
+
+func _controller_message(_event: BaseEvent) -> void:
+	pass
+
+
+func _process(_delta: float) -> void:
+	if not jets_collection: return
+
+	for jet: Jet in jets_collection.get_children():
+		if jet.controller.control_mode == Globals.ControlMode.PLAYER_MODE:
+			continue
+
+		set_jet_action(jet)
+
+func set_jet_action(jet: Jet) -> void:
+	jet.controller.cpu.yaw_left()