Balz Guenat 4931510ad3 backlight breathing overhaul ()
* add breathing to bananasplit

* backlight breathing overhaul

* fix the backlight_tick thing.

* fix for vision_division backlight

* fix a few keymaps and probably break breathing for some weirdly set-up boards.

* remove BL_x keycodes because they made unreasonable assumptions

* some fixes for BL keycodes

* integer cie lightness scaling

* use cie lightness for non-breathing backlight and make breathing able to reach true max brightness
..
default Backlight abstraction and other changes ()
pvc backlight breathing overhaul ()
abienz.c Renames keyboard folder to keyboards, adds couple of tmk's fixes ()
michelle.c Renames keyboard folder to keyboards, adds couple of tmk's fixes ()
twolayer.c Create twolayer.c