Add route handler for DELETE /api/roadmaps/:roadmapID
Add route handler for DELETE /api/roadmaps/:roadmapID

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