2019-01-01: initial release ospfv3_area, ospfv3_general, ospfv3_virtuallink
2019-10-31: initial release ospfv3_interface, ospfv3_neighbor
2019-11-02: added metrics
2021-09-17: rewritten for CMK 2.0
2021-10-02: added WATO options
2022-11-30: WATO: fixed CheckParameterRulespecWithoutItem (from CheckParameterRulespecWithItem)
2023-12-21: replaced ifDescr by ifName
            fixed handling if non-matching ifIndex -> Note: this might change the service item