Add MIB definitions from 3rd party repositories

I recently found a project that contains several thousand MIBs, all located in a single git repo.

It might be handy to look at pulling and integrating those MIBs, or to possibly have a script included in the LibreNMS install that pulls the archive in and installed all of the various MIB files into itself.

I know this will not provide graphs, or information on what to probe, but it’s a first step towards having broader coverage of devices.

Mibs on there own aren’t useful to us, code typically needs writing.

Finding the mibs isn’t usually that hard anyway but thank you for the resource.