RFC: Add configs for prop. Antennas

[Akira25]

On most locations, there are antennas which do transparent WDS-Bridges PtP and PtMP-Links. The config for theses devices should be added to bbb-configs too.

For Mikrotik-Devices running RouterOS, one can export scripts, that will regenerate the current antennas config, by using the export command.

It might be a good idea, to encrypt the scripts via ansible-vault using the core router password. One example can be seen in fffw-rathaus-branch

[pktpls]

Same thing can be done for AirOS, it has a textfile containing the full config which can be fetched via SSH.

[spolack]

Why not setup a oxidized server, which carries out backups to a git repo on a daily basis? We might need to implement support for certain devicetypes, but this would be definitely a more universal approach.