[Observium] Full support for FS Switch's.

Hey Adam, I like to Request full SNMP support for FS.com switches. Currently a lot of info in left out. Such as Temps, Fans, Power Supply status Etc. Specifically S5860-20SQ. https://www.fs.com/products/108710.html

MIB Files: [ https://img-en.fs.com/file/user_manual/s5860-series-swithes-snmp-mib-files.z... | https://img-en.fs.com/file/user_manual/s5860-series-swithes-snmp-mib-files.z... ]

Additional info that may be helpful: https://img-en.fs.com/file/user_manual/s5860-series-switches-snmp-template-w...

Thank you

Kevin Riahi kevin.riahi@envoi.com https://www.envoi.com