* Use defines to keep either all behaviors with omits, or selective behaviors with
explicit kept behavior, before including `behavior.dtsi` in keymaps.
* Default ZMK_BEHAVIORS_KEEP_ALL when building with the studio RPC
endpoint snippet.
* Better naming for gpio-key behavior triggers.
* Tweaks to scanned behavior trigger to avoid bad semaphore use,
and reduce chance of issues with slowly scanned matrixes.
* Various code cleanups of style issues.
* Move to explicit enable of `ZMK_PM_SOFT_OFF` to turn
on the feature and use the behaviors, which matches
how other features work, and helps with split and
testing schemes.
Initial work on a soft on/off support for ZMK. Triggering soft off
puts the device into deep sleep with only a specific GPIO pin
configured to wake the device, avoiding waking from other key
presses in the matrix like the normal deep sleep.
Co-authored-by: Cem Aksoylar <caksoylar@users.noreply.github.com>