* Use pathlib everywhere we can
* Improvements based on @erovia's feedback
* rework qmk compile and qmk flash to use pathlib
* style
* Remove the subcommand_name argument from find_keyboard_keymap()
* add experimental decorators
* Create decorators for finding keyboard and keymap based on current directory.
Decorators were inspired by @Erovia's brilliant work on the proof of concept.
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