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

scripts/message_bus/controller_message_bus.gd

@@ -0,0 +1,25 @@
+class_name ControllerMessageBus extends Node
+
+
+
+var message: Callable               = Callable(self, "_message")
+var message_to: Callable            = Callable(self, "_message_to")
+var message_to_selected: Callable   = Callable(self, "_message_to_selected")
+var register_controller: Callable   = Callable(self, "_register_controller")
+var unregister_controller: Callable = Callable(self, "_unregister_controller")
+
+
+func _message(_event: BaseEvent):
+	assert(false, "Controller Message Bus 'message' must be overriden by Controller Manager...")
+
+func _message_to(_ename: String, _event: BaseEvent):
+	assert(false, "Controller Message Bus 'message_to' must be overriden by Controller Manager...")
+
+func _message_to_selected(_ename: Array, _event: BaseEvent):
+	assert(false, "Controller Message Bus 'message_to_selected' must be overriden by Controller Manager...")
+
+func _register_controller(_ename: String, _controller: BaseController):
+	assert(false, "Controller Message Bus 'register_controller' must be overriden by Controller Manager...")
+
+func _unregister_controller(_ename: String):
+	assert(false, "Controller Message Bus 'unregister_controller' must be overriden by Controller Manager...")