Add 1 connector to 2 ports (1C2P:2P1C) breakout cable profile

[hexlibris]

NetBox version

v4.5.5

Feature type

Change to existing functionality

Proposed functionality

NetBox version
v4.5.5

Feature type
Change to existing functionality

Proposed functionality
Add a new cable profile, to allow users to use breakout cables with 1 connecter and 2 ports
Taking some information from #21663:

Currently, NetBox ships 26 profile classes (e.g. single-1c2p, trunk-4c4p). Adding a new combination requires modifying source code in three places: cable_profiles.py, choices.py, and the profile_class property in models/cables.py.

Use case

This new cable profile would allow users to use DAC cables such as the following (1 breakout to 2):
https://www.fs.com/eu-en/products/101800.html

Database changes

Dont think it requires database changes, just modifying the previously highlighted files.

External dependencies

N/A

[hexlibris]

@jeremystretch would it be possible to assign it to me ?
I have a fork with the code that hopefully closes this

[pheus]

Thanks, @hexlibris !

[hexlibris]

@pheus it should be done