[BH-700] Add minimal Alarm app

Add minimal BellAlarm application

[BH-380] Librarize application-calendar

Librarize application-calendar

[BH-564] Add Time&Units application

Add first version of Time&Units application (just setting time)
Remove spinner demo application

[EGD-7161] Remove image name reference in vfs

Add ability to change an image name in the vfs code by decoupling vfs
from a so-called board code.

Introduce platforms as a hardware and os abstraction layer for product
code.

Signed-off-by: Marcin Smoczyński <smoczynski.marcin@gmail.com>

[BH-377] Liberalize application special input

Liberalize app SI

[BH-382] Rebase and cleaning

Rebase and cleaning

[BH-385] Turned application meditation into lib

Created separate cmake library, defined public and private
include search path and dependencies, removed this app
from BellHybrid target dependencies and added explicitly
as PurePhone dependency, cleaned up include paths

[BH-384] Turned application desktop to library

Defined separated cmake library, private and public include
directories and dependencies, isolated public headers from private,
cleaned up include paths and defined which targets depend on new
library, cleaned up include paths

[BH-381] Turned application call into lib

Defined separate cmake target, dependencies, private, and public
sources, cleaned up include paths

[EGD-7130] Renamed settings application

Renamed settings application.

[EGD-7120] Remove old settings application

Moved valuable assets to new settings.
Removed old settings.

[BH-386] Turned app messages into lib

Turned application messages into library, defined dependencies,
private and public sources, cleaned include paths, massive
cleaned headers

[BH-390] Turned notes app into library

Turned application notes into separate library, specified
private and public include directories and dependencies,
removed application notes from Bell Hybrid target

[BH-363] Move libphonenumber to a separate directory

Move libphonenumber to a separate directory

[BH-379] Librarize application-calculator

Librarize application-calculator

[BH-392] Turned application phonebook into lib

Created application phonebook separate library, defined private
and public source files and dependencies

[BH-374] Librarize application-antenna

Add apps-common, librarize application-antenna

[BH-515] Create main Bell app

Create main Bell app

Merge branch 'master' into stable

[EGD-6736] Add app's state dependent autoLock mechanism

This PR provides the implementation of the auto-locking mechanism that
is dependent on an application's current auto-locking policy. Three
auto-lock policies have been introduced:

* DetermineByWindow
* DetermineByAppState
* PreventPermanently

Also changed the AutoLockWindow set/get auto-lock time value to the
message-based approach.