sensor: force fake anomaly


git-svn-id: https://gnunet.org/svn/gnunet@34145 140774ce-b5e7-0310-ab8b-a85725594a96
sensordashboard: storing received anomaly reports


git-svn-id: https://gnunet.org/svn/gnunet@34146 140774ce-b5e7-0310-ab8b-a85725594a96