[EGD-3045] Magnetometer driver (#788)

* [EGD-3045] magnetometer driver - timer polling approach
- magneto pin mux
- magneto reg structs
- magneto irq skeleton
- bluetooth irq handler moved
- dedicated i2c methods
- bitfields parsed and populated explicitly
* [misc] big endian ↔ long conversion in Utils + UT

[EGD-4118] Audio doxy cleanup (#856)

[EGD-4075] Changelog notification about image (#883)

Co-authored-by: Lucjan Bryndza <lucjan.bryndza@mudita.com>

[EGD-4135] FREERTOS vfat ff_fflush implementation (#878)

ff_fflush implementation is needed for sqlite3 when
unexcepted power failure.

Co-authored-by: Lucjan Bryndza <lucjan.bryndza@mudita.com>

[EGD-2628] Create Add device windows (#867)

[EGD-2628][WIP] Attach Add Device window

[EGD-2628] Fix passing scanned bt devices to Add device window

[EGD-2628] Add bt icon and adjust botton bar of Add device window

[EGD-2628] Add all devices window, & some fixes for add device window

[EGD-2628] Update changelog & cleanup

[EGD-2628] Improve bluetooth main window

[EGD-4075] Use FATFS in the Linux builds (#843)

* [EGD-4075] Use FAT fs in the emulator

Add script for genrate base phone image

* [EGD-4075] Use FreeRTOS-FAT in emulator initial commit

* [EGD-4075] Thread local storage fix

Fixing thread local storage when running on the
Linux platform in the test mode

* [EGD-4075] Improve image generation

Improve image generation script on the linux platform

* [EGD-4075] Fix all test with FAT fs image

Fix all tests with fatfs image

* [EGD-4075] Fix calculator utility test

* [EGD-4075] Image dependencies fix

* Remove uneeded comments

* Missing headers in CR

* [EGD-4075] Fixed whitespaces

Co-authored-by: Lucjan Bryndza <lucjan.bryndza@mudita.com>

[EGD-4011] added BT audio device with A2DP playback (#870)

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

[EGD-4057] Create sql script for file indexer DB schema (#869)

[EGD-4119] Add mtools package as required (#859)

[EGD-4120] Cellular - new line at the end of the command (#877)

[EGD-3852] Add missing virtual destructor (#876)

[EGD-4130] meditation time dispaly fix (#868)

[EGD-4099] BT set stream (#846)

[EGD-3743] Removed old doxygen copyright statements from project.

[EGD-3743] Update copyrights in fies

[EGD-3743] Update copyrights in fies - add empty line after license

[EGD-4003] audio: fix workers destroying (#806)

Improve workers destroying by replacing sudden death with a gentle close
request.

Make (De)Init static - when creating second instance of a codec there
was a situation when destructing one instance was causing first one to
stop working, because they share common hardware resources.

[EGD-4128] Fix - routing does not start (#866)

[EGD-3959] Gong sound added (#857)

[EGD-3409] Text boundaries fixes. (#860)