This commit adds a new GATT characteristics on the peripheral side
and wires it up to read sensor values. The central side subscribes
to this new characteristics and replays sensor values on its side.
Co-authored-by: Peter Johanson <peter@peterjohanson.com>
* Add new `steps` property to the `aips,ec11` binding, to make
the driver properly report degrees in the rotation delta channel.
* Handle old sensor values in sensor rotate behavior.
* Refactor sensor events to include channel data,
necessary for prop split encoders, and avoiding duplicate calls,
to fetch channel data twice, etc.
* More consistent behavior driver API.
* Allow setting triggers per resolution at the behavior level optionally.
Extended the virtual key position system from combos so that each sensor
also gets a virtual key position. This allows sensor behaviors to use
the behavior queue API.
