SNMP, Discovery and Poller for DELL EMC ME4024 SAN

SNMP-walk:
https://p.libren.ms/view/164424ae

Discovery:
https://p.libren.ms/view/d6dc8d41

Poller:
https://p.libren.ms/view/247828aa

(Imported from https://github.com/librenms/librenms/issues/10297, Original request by: @BigFriendlyDuck)

Am looking at this, as I have some 4084s:

Hard to make sense of MIB… which I think might only be giving network info

Decided to go down the route of making a script on the connected server to monitor. It’ll then be used with SNMP extend.

Note currently in testing.