Initial pass at data driven new-keyboard subcommand

[zvecr]

Description

Builds on previous iterations by leaning on the community defaults and json schemas.

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

• Fixes Convert new_keyboard.sh to a python command #6872

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).

[drashna]

"none of the above" doesn't work.

<class 'FileNotFoundError'>
☒ [Errno 2] No such file or directory: 'layouts/default/none of the above/default_none of the above'
Traceback (most recent call last):
  File "/usr/local/Cellar/qmk/1.0.0_1/libexec/lib/python3.9/site-packages/milc/milc.py", line 526, in __call__
    return self.__call__()
  File "/usr/local/Cellar/qmk/1.0.0_1/libexec/lib/python3.9/site-packages/milc/milc.py", line 531, in __call__
    return self._subcommand(self)
  File "/Users/drashna/repos/qmk_firmware/lib/python/qmk/cli/new/keyboard.py", line 187, in new_keyboard
    shutil.copytree(community_keymap, keymaps_path / 'default')
  File "/usr/local/Cellar/python@3.9/3.9.9/Frameworks/Python.framework/Versions/3.9/lib/python3.9/shutil.py", line 564, in copytree
    with os.scandir(src) as itr:
FileNotFoundError: [Errno 2] No such file or directory: 'layouts/default/none of the above/default_none of the above'

[zvecr]

"none of the above" doesn't work.

Should now be resolved in the short term

Need a bootloader, now.