2018-07-31: initial release
2020-06-08: changed snmp-scan function
2021-08-10: rewritten for CMK 2.0
            added WATO
2023-04-23: refactoring
            moved wato file to ~/local/lib/check_mk/gui/plugins/wato
            moved rule set from networking to hardware
            added dummy legacy check file to "kill" the original legacy check