[BH-1532] Changing alarm's trigger time when alarm is snoozed causes several problems

Fixed alarm problems when it was re-set while snooze was still active

[BH-1705] Fixed back button power off timer to 10s

When holding the back button, the device would prompt to
power off after 5s. This was not inline with the manual. Now
the prompt will come up after 10s which is correct by the
manual. In the code, the actual time is set to 9s because
an additional 1s delay is caused by the OS and screen
refresh rate.

[CP-1968] Disconnecting the device during file upload causes problems with the USB

Fixed the problem with an endless loop while sending data
when USB is already disconnected.

[MOS-994] Fix redirection to dial number view by pressing BACK from add new number view

Fix for inconsistent redirection when the user dial number from home screen and
want to save it but instead of save the user click BACK
to go to screen with dialed number

[CP-1962] Add Harmony color detection

* Added serial number based Harmony color
detection.
* Unified serial number handling for both
products.

[MOS-230] Print last instruction address before RTWDOG reset

Added mechanism that stores address of last
executed instruction before RTWDOG timeout
to enable some basic debugging in such cases,
as such resets do not create crashdumps and
leave no information in logs.

[CP-2020] Imported contact does not appear in Center

Stopped sending notification when contact add failed

[MOS-341] Fixed autofill data during adding previously deleted phone number

Fixed a scenario when the user, after deleting some contact, wont to add
this previously deleted number to contact by providing a phone number from
home screen and clicking Add button.

[BH-1706] Fix inaccessible MTP on Harmony

Fix of the issue that Harmony's MTP
was constantly locked after MOS-686
fix, as the mechanics of unlocking
was not handled for Harmony at all.

[CP-2014] Fix file list isn't always loaded

Fix critical sections for send/recv virtual com functions.

[BH-1701] Add extended user heap statistics for debugging

Added extended statistics to help track potential memory leaks:
* used user heap size per task
* number of successful allocations
* number of successful frees

[BH-1647] Add serial number to about section

Added serial number entry to about window

[CP-889] Add extended information about number duplications

Changed a way of returning information to Center about number
duplications

[BH-1690] Add information about the connection to the PC

Minor fixes to label positioning and connection detection

[MOS-686] Fixed MTP availability only after phone unlocked 2

This is fix for Windows. It's fix for previous fix witch:
Fixed file access via MTP even when phone is not unlocked.
Now access is granted when the phone is unlocked by the user
entering a passcode. If the phone is not passcode protected
(passcode is nor set) then access to the files is always possible via MTP.

[BH-1702] Fix RTWDOG main DCDC reset

Fix of the issue that RTWDOG performed
only CPU reset in case of timeout due
to IRQ misconfiguration resulting in
RTWDOG handler not being called.

[BH-1673] Fixes for Harmony random resets

Next part of Harmony random resets fixes:
* added RC OSC startup delay as in newest lpm.c;
* changed order of clock source, oscillator and
LDO switching;
* removed connecting internal DCDC load resistor,
as it is only required to speed up converter
startup after it was turned off completely;
* changed DCDC operation mode to continuous
conduction;
* set low VDD_SOC_IN voltage back to 950mV as
suggested in RM.
* added switching DCDC converter mode to
discontinuous conduction for two lowest CPU
clock frequencies, as using CCM mode resulted
in very high current consumption that would
shorten Harmony's life on battery
significantly.

[BH-1700] Add date and time to logs at the startup

Save date and time at the startup of the system for analysis purposes.

[MOS-993] Logger bug fixes and optimizations

Fixes and optimizations in logger:

* fixed possible buffer overflow when logging
logs over line buffer size;
* reduced max log line length to 2048;
* moved pubsetbuf before file opening;
* log file stream buffer created once
in logger ctor;
* updatet UTs;
* additional minor cleanup.

[MOS-973] Fix for a ghost call after quick click back key to end a call

Fixed a scenario where the user click to make a call to some contact and
then quickly click BACK (right function button) to end the call and despite
that Pure was still calling without showing any information.
This fix prevent to handle key press event as a key longpress even after
application lose a focus, or change a state.