Add common module managing common services and scripts (act_runner, create/restore backups)

Fix script environment variables
Add Fefan configuration
Fix gateway services file provisionning through ssh

modules/apps/common/services/create-backup.timer

@@ -0,0 +1,9 @@
+[Unit]
+Description=Run backup
+
+[Timer]
+OnCalendar=*-*-* 01:00:00
+Persistent=true
+
+[Install]
+WantedBy=timers.target