Language specific key codes

[Ivan-Malinovski]

As it is now, it is a massive pain to create keyboard layouts, if you're not using a keyboard with US layout.

QMK solves this by having language specific key codes, that can be imported, and they're essentially just files that create aliases that "translate" US-layout inputs to your language of choices. So when I want to do $ on my Danish layout, I can do &kp DK_DLLR in the keymap, instead of &kp RA(N4).

Right now I've already implemented Danish aliases in my own layout, but I'm thinking it would be nice to have a repository with language files, that you can just import when necessary.

[MvEerd]

This may be a duplicate of #177, it is at least one of the solutions proposed there for this use case