[Keyboard] Add support for KBDfans Odin V2

[lexbrugman]

Description

Adding support for the KBDfans Odin V2

Types of Changes

• Core
• Bugfix
• New feature
• Enhancement/optimization
• Keyboard (addition or update)
• Keymap/layout/userspace (addition or update)
• Documentation

Checklist

• My code follows the code style of this project: C, Python
• I have read the PR Checklist document and have made the appropriate changes.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• I have tested the changes and verified that they work and don't break anything (as well as I can manage).

[lesshonor]

This PR uses PID 0x0101, which is the same as for the Odin Soldered. This in turn causes all tools, e.g. VIA to not function, as the Odin Soldered does not have RGB. Any special reason the same PID was used here ?

...Probably so the same matrix definitions would be re-used. The docs encourage this:

Note that multiple versions/revisions of a keyboard PCB can use the same vendor/product if they function the same from VIA Configurator’s point of view, i.e. they have the same (or compatible) physical key layout and switch matrix topology and the same “layout macro” (mapping physical key layout to switch matrix layout) is used. VIA Configurator doesn’t care which I/O pins are being used, it just reads/writes keycodes to the dynamic keymaps stored in switch matrix addressing. As such, please consider carefully whether you actually need to create more than one vendor/product ID pair for multiple versions of the same keyboard PCB.

As far as I'm aware, there's no documentation indicating that unique product IDs are required for different lighting implementations...perhaps because until recently VIA didn't care whether the "lighting" definition of a board matched its firmware implementation. (On a lot of DIY boards, adding lighting is up to the end-user...) Board owners without it could simply ignore the Lighting tab, and a lot of boards that use RGB_MATRIX just went with RGBLIGHT since VIA didn't support the former.

FWIW, I don't think Vial or Remap have this issue, so if you're in a pinch and have older firmware handy, you could try using one of those remappers.