* Add tsangan bottom row hhkb layout for dz60
* Add crd's tsangan hhkb layout for dz60
* Resort to native key aliases when they exist
* Update crd's dz60 ansi keymap to match updates for hhkb fn layer
* Add tsangan hhkb layout to dz60 info.json for KLE
* Fix JSON nesting in dz60 layouts block
* Minor adjustments to crd layouts to make them more consistent
* Update layout naming to 60_tsangan_hhkb
