Cron job restart

https://github.com/alexbelgium/hassio-addons/issues/435

transmission_openvpn/rootfs/templates/restart_addon

@@ -0,0 +1,8 @@
+#!/usr/bin/env bashio
+# shellcheck shell=bash
+
+if [ -f /vpn_stopped ]; then
+  bashio::log.fatal 'Tunnel down, addon restarting in 15 seconds'
+  sleep 15
+  bashio::addon.restart
+fi