[EGD-5666] Add BT off function

Turning BT off was impossible thus there was the need of fixing it
Updated harness test

[EGD-5483] Updated BT harness tests

Added harness test for BT scan in order to be able
to test regression

[EGD-5480] Bluetooth scan refactor

There was a need for Bluetooth scan code refactor. Here it is

[EGD-5158] Change access to the bus methods

The bus is now accessible only via Service object.

[EGD-5625] Optimize the binary size of the SML state machine

The debug firmware couldn't be built because of its size.

[EGD-5472] Bluetooth worker state machine

State machine POC implemented using SML library.

[EGD-5471] Add Bluetooth on/off state diagram

Added state machine diagram for Bluetooth power on/off

[EGD-5457] Add harness test for bluetooth on/off

There is no functional tests related to the Bluetooth. As the
refactor is on the way,we need to have a tool to check if it works
By the way fixed worker deinit

[EGD-5316] Add Bluetooth run loop integration into worker

To be able to handle properly the Bluetooth stack we need to
get rid of doubled FreeRTOS task and do refactor of
the whole BT section. This is first part of refactor and it
includes integrating run loop into our worker and unifying
namespaces

Merge branch 'master' into stable

[EGD-4580] Add BT settings middleware

Added bluetooth settings middleware to store BT status in settings.
Added middleware layer to handle new settings queries.

[EGD-5070] Change new filesystem in module bt

Due to vfs deprecation there is need to
remove all vfs calls from code.
This PR covers module bluetooth.

[EGD-5070] Review changes.

[EGD-5070] Change new filesystem in module bt

Due to vfs deprecation there is need to
remove all vfs calls from code.
This PR covers module bluetooth

Merge branch 'master' into stable

[EGD-4899] Worker class design improvements and fixes (#1190)

* allow workers to run independently from service
* change worker to use FreeRTOS wrapper Queue class instead of
  freeRTOS native queues
* fix bug disallowing to destruct worker that have never ran
* fixed worker bad state transition to Running state

Merge branch 'master' into stable

[EGD-4704] fixed callbacks calling (#1155)

Fix Bluetooth thread sending issue
Co-authored-by: SP2FET <bartosz.cichocki@mudita.com>

[EGD-4582] Bluetooth over DMA (#1115)

[EGD-4582] Bluetooth UART: replace polling with DMA

Merge branch 'master' into stable

[EGD-4578] bluetooth: added interface messages (#1116)

Add Bluetooth interface messages

[EGD-4578] updated class diagram

Co-authored-by: SP2FET <bartosz.cichocki@mudita.com>

[EGD-4506] Add proposal of basic bluetooth settings data flow (#1090)