[EGD-6075] Add support for emmc system partitions

Add support for EMMC hardware partitions to the
disk manager
Hardware system partitions are visible as <device_name>sys<num>
Disk user partitions are visible as <device_name>part<num>

Signed-off-by: Lucjan Bryndza <lucjan.bryndza@mudita.com>

[EGD-6486] Fix for settings not avaialble at phone startup

Fixed the comparison function of EntryPath objects.

[EGD-6209] Tethering confirmation popup added

Provided a tethering confirmation popup.
The popup shows up once a USB cable is connected to a PC.

[EGD-5748] Revert remake cellular flow

Reverts changes due to reported issues

[EGD-5913] Fixed language assets fallback load

Fixed language assets fallback load bug causing invalid
information display on startup.

[EGD-6121] Add offline mode in service cellular

Adds entering and leaving ito offline mode in sevice
cellular. Outgoin SMS and calls are blocked Proper popups
are shown in applications Call and Messages.

[EGD-6415] Do not silently crash on empty image name

Image should not silently crash with empty or incorrect image name.

[EGD-6413] Update CI Debug for UT Release for harness

Split build types for UT and Harness tests.

[EGD-5748] Remake Cellular flow

This commit changes TS0710 Worker operation.
1. It introduces MessageBuffers as main
interprocess data passing mechanism.
2. DMA transaction status codes and CMUX errors
are now propagated to Service.
3. Data processing has been refactored.

[EGD-6393] Fix for crashing unit tests

System update unit test crashes.
The test is disabled as that piece of code is not unit-testable.

[EGD-6066] Removed Message default constructor

Forced each message to have declared type as parts of Bus logic
depends on it and previously we encountered undefined
behaviours. Added tests and messages validators.

[EGD-5932] Create Quotes agent

- add Quotes agent,
- implement get all quotes
  and get all categories queries,
- extract PagedData from ListDirData
  and reuse it in QuotesMessages,
- unify naming in Quotes and FileIndexer,
- add Quotes agent unit tests

[EGD-5908] Fix bug in Logger + add log unit test

Because `vsnprintf` return value means:
"
The number of characters that would have been
written if n had been sufficiently large,
not counting the terminating null character.
If an encoding error occurs, a negative number is returned.
"

`Logger` crashed when log msg was longer than LOGGER_BUFFER_SIZE.
Checking `vsnprintf` return value solves this issue.

[EGD-5204] Secure USB communication

Secure all endpoints by returning 403(Forbidden) when USB is connected.
Request screen passcode to enable secured endpoints.

[EGD-4157] Actions queue added

All actions shall be queued in order to process them later.

[EGD-5831] Fix handling URC

Fix handling URC like no carrier

Merge branch 'EGD-5737-merge-master-to-exp-lbr-fix'

[EGD-5737] Merge master into experimental

Synchronize with master before merging

[EGD-5692] Change URC parsing mechanism

Improved the mechanism for processing URC messages
so that long messages and those containing end of line
inside messages can be handled also if income
in more than one data chunk.

[EGD-5737] Fix filesystem unit tests

Remove old VFS and utils::filesystem calls
Update unittest lists