added offboard lost actions with additional timeout

src/modules/commander/commander_params.c

@@ -413,3 +413,15 @@ PARAM_DEFINE_INT32(COM_FLTMODE5, -1);
  * @value 12 Follow Me
  */
 PARAM_DEFINE_INT32(COM_FLTMODE6, -1);
+
+/**
+ * Time-out to wait when offboard connection is lost before triggering offboard lost action.
+ * See NAV_OBL_ACT and NAV_OBL_RC_ACT to configure action.
+ *
+ * @group Commander
+ * @unit second
+ * @min 0
+ * @max 60
+ * @increment 1
+ */
+PARAM_DEFINE_FLOAT(COM_OF_LOSS_T, 0.0f);