[Keyboard] Add Klor

[waffle87]

Description

Adding Klor keyboard due to this keyboard's popularity and the available firmware being very incompatible with modern QMK.

Types of Changes

• Keyboard (addition or update)

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).

[azzamsa]

Just dropping in to do the same thing! I've seen a lot of posts on Reddit and Discord asking for a working KLOR firmware. I have my own up-to-date version, but I’ve stripped out everything I don’t need. I’ve been hesitant to make a PR because I’m not too familiar with certain parts, mainly the RP2040 version and the trackball library.

Once this PR is merged, I’ll be able to keep everything in my qmk_userspace without having to switch back and forth between qmk_firmware branches.

Thanks so much for doing this!