* Initial Lily58 keymap
* Still not sure if these thumb key placements are optimal or not. I
might want to move space (enter) one key to the left (right),
respectively.
* Also unsure how I feel about Esc on a mod tap key with Ctrl... might
move it back to its own key and relocate the = key.
* Missing bindings for Print Screen, Scroll Lock, Pause/Break.
* Make Lily58 layout support operation without numrow
* Move some Lily58 modifiers around
* Move nav keys to more consistent locations
* Rebinding shift on Raise is stupid
* Don't stomp Ctrl on the Lower layer
* Tweak bottom row a little bit
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