Treewide: Add snmp monitoring for some switches

[FFHener]

This PR adds Monitoring for some switches and several new profiles to archive this. These changes got already deployed at the gateways. Grafana/cgp arent yet at the state of showing all of these values in a beautifull way but this shouldnt stop us from slowly rolling out more data collection from the switches.

Although i didnt touched it Im unhappy about the current airos_6 Situation. When no Station is connected to a AirOS 6 AP the snmp-call for the name of the connected stations obviously cant work resulting in a NoSuchName-Error in our logs. This means that we get at e.g. chris-core every 30 seconds 30 errors. We should address this in the future. #766

TODOs:

• Add Profile for tplink
• Add Profile for edgerouter
• Add + Deploy Monitoring for ak36
• Add + Deploy Monitoring for l105
• Add + Deploy Monitoring for ohlauer
• Add + Deploy Monitoring for saarbruecker
  • Remove saarbruecker-sama monitoring from sama
  • Add profile for Gigabeam LR and add monitoring (also on segen) use airos_8 profile as the missing data doesnt get reported. We get zeros as a reply which is handable.
• Add + Deploy Monitoring for strom
• Investigate the NoSuchName Error on airos_6 devices -> Solution collectd: disable logging for locations with AirOS 6 snmp_profiles #766
  • Investigate if we can compress this error
  • If not write a comment
• Check Scales -> need to be fixed somewhere else. The wrong scale only happens at Grafana. This is because the script feeding prometheus doesn't hand over the scale Information's if i understood rtznmpfl correctly
• Make shure that snmp is correctly configured on all hosts gateway devices

[Noki]

looks good to me