Implement getID and getName in Reminder/Notifier as required since Nextcloud 17
Implement getID and getName in Reminder/Notifier as required since Nextcloud 17

Signed-off-by: Georg Ehrke <3dacbce532ccd48f27fa62e993067b3c35f094f7@georgehrke.com>

andreas-p/nextcloud-server,andreas-p/nextcloud-server,andreas-p/nextcloud-server,nextcloud/server,nextcloud/server,nextcloud/server,andreas-p/nextcloud-server,nextcloud/server,andreas-p/nextcloud-server