move @ka2hiro 's boards into /kagizaraya

[peepeetee]

Description

At this point in my series of board move PRs, I've started to move boards where I cannot reach the makers beforehand, and have to contact them via the PR itself.

This PR is made without contacting(or failing at contacting) @ka2hiro first, so it would need them to approve it for it to go in.

As there was no prior communication before this PR, I have to ask a few questions:

• Is the folder name satisfactory?
• Did I leave anything out?
• Did I include anything I shouldn't have included?

Types of Changes

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

Issues Fixed or Closed by This PR

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).