Move ortho & numpad layouts to data driven

[fauxpark]

Description

All boards with layouts beginning with LAYOUT_ortho_ and LAYOUT_numpad_, including other layouts as consequence.

There will be some SHA mismatches due to tweaks I had to make to certain layouts (eg. Planck) - see #20039.

I also had to skip some boards that use FLIP_HALF to replace the layout macro entirely. Not sure how to handle those...

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).

[fauxpark]

Only SHA mismatch is handwired/ortho_brass, which is expected (one of its layouts had a key mapped to two matrix positions). There are other layouts fixed in this way but are clearly unused in the default keymap so will not affect the output.