Add interface type for SFP56 (50GE)

[do9xe]

NetBox version

v2.11.0-beta

Python version

3.9

Steps to Reproduce

Hello Team,

we have found a false speed in the transceiver-list of the public netbox beta.
In the list are two QSPF28 Transceivers with 50G and 100G, but there should be only one with 100G. Also the Transceiver-Type SFP56 (50G) is missing. We have proposed an update to this List.

Thanks for the awesome project,
Adrian & Hendrik

Expected Behavior

Correct values for all interface types

Observed Behavior

false values for some interface types

[jeremystretch]

In the list are two QSPF28 Transceivers with 50G and 100G, but there should be only one with 100G.

QSFP28 also supports 50GE. It belongs in the list.

[jeremystretch]

FYI this was opened against v2.11-beta but has been added under v2.10 (develop).