Change how different sensor types ar handled

sensors/lidar_2d_sensor_node.gd

@@ -0,0 +1,14 @@
+extends BaseSensorNode
+class_name Lidar2DSensorNode
+
+# Called when the node enters the scene tree for the first time.
+func _ready() -> void:
+	pass # Replace with function body.
+
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _process(delta: float) -> void:
+	pass
+
+func _get_sensor_class():
+	return "LIDAR_2D"