yaml os discovery now respects the os mib_dir definition
mib_dir now only allows strings, not arrays
changed schema validation to account for that
consolidated dell mibs, no reason for them to be spread out
* Add Advantech logo.
Taken from https://commons.wikimedia.org/wiki/File:Advantech_logo.svg
with minor edits (removed width and height).
* Add Advantech MIB files.
* Add Advantech definitions.
* Add suppor for version and hardware polling.
* Add advantech snmp recording.
* Add sensors for SFP ports
Each SFP will have temperature, voltage, tx bias, Tx/Rx power.
Also update snmp recording to include new data.
* Rename ADVANTECH-EKI-PRONEER-MIB_1_01.mib to ADVANTECH-EKI-PRONEER-MIB
* Rename advantech-common-mib.mib to ADVANTECH-COMMON-MIB
* Update advantech.yaml
* Update advantech.svg
* Create advantech.json
Co-authored-by: PipoCanaja <38363551+PipoCanaja@users.noreply.github.com>
