(feat) Add updated timestamp to node model.
(feat) Add updated timestamp to node model.

sreimer15/RoadMapToAnything,RoadMapToAnything/RoadMapToAnything,delventhalz/RoadMapToAnything,cyhtan/RoadMapToAnything,delventhalz/RoadMapToAnything,cyhtan/RoadMapToAnything,RoadMapToAnything/RoadMapToAnything,GMeyr/RoadMapToAnything,sreimer15/RoadMapToAnything,GMeyr/RoadMapToAnything