[EGD-6282] Add marketing-friendly test messages to Pure

Added a long 4K note from a book and Mudita-related.

[EGD-6282] Add marketing-friendly notes

Added a marketing-friendly notes and a 4K chars passage
from 'The Picture of Dorian Grey'.

[EGD-6277] Changed contacts to English names

Changed contact names and contact details to 
more marketing-friendly.

[EGD-5783] Exclude empty body from response message

Remove body field from response message,
if it contains null. Add 204 and 501 status codes
and use them in proper responses.
204 stands for success but no content, and 501
means endpoint is not implemented.
Additionally some minor fixes.

[EGD-4593] Increase dumping logs timeout

Increase dumping logs timeout

[EGD-6239] Fix Linux Release build on gcc-10

strncpy() was provided with size equal to a buffer size, not leaving
buffer space for a trailing zero; also sml fix.

[EGD-5743] Added phone modes popup

Implementation of phone modes window.
Minor fixes of previous approach.

[EGD-6220] Fix Calllog persistent DB entry

Date entries are stored in DB as `int`s. String version is obsolete

[EGD-6191] Fix harness call tests

* This PR provides a fix for the bug reported in [EGD-6081].
The solution adds the `tear_down`-like fixture called after the
problematic tests, that enforce focus on `ApplicationDesktop'`s
main window.
* Additionally similar solution was added to `test_auto_lock`
to restore original (30s) lock timeout.

[EGD-6081]: https://appnroll.atlassian.net/browse/EGD-6081

[EGD-5868] Add access to backup over MTP

This change adds access to backups via MTP
after backup file has been successfuly created.

[EGD-6219] Add GDB macro to print memory

Added GDB macro to print out the content
of the memory range in hex/ASCII format.

[EGD-6193] Connect Categories window with agent

Connect Categories window with agent

[EGD-6238] Write Pure simulator guide

Added a simple Pure simulator guide to the docs.

[EGD-6232] Fix Harness does not unlock endpoint

USB unlocked in tests
Adjustment of tests to the new EP API

[EGD-6190] Fix Bluetooth DMA transmission

Enabled previously FIFO buffer without proper handling caused
ignoring one byte. Disabling FIFO fixes this issue

[EGD-6222] Fix the App Calendar memory leaks

This PR fixes:
 -several explicit uses of `new` that were not matched by `delete`
 -dangling `CalendarTimeItem`s
 -reset of focus on the `allDayEventCheckBox` check/uncheck
 -exiting the app form `allEventsWindow` on `KEY_RF`

[EGD-5712] Volume popup added

There is need of popup window on volume key
pressed event. This PR handles:
Creating base popup window attached to
application desktop.
Creating volume window.
Audio key events logic implementation.

[EGD-5932] Add the rest of queries to Quotes agent

Implement add/read/write/delete quote queries

[EGD-6079] Moved at factory from header to cpp file

- data moved to std::initializer_list no issue warned with tools
- GCC tools do not warn issues with memory now

[EGD-6230] Fix reading of cheksum.txt file

Fix errors regarding update.