[EGD-5439] Fix compile after merge from master

Fix compile after merge from master

[EGD-5737] Merge master into experimental

Keep experimental up to date with changes from master

[EGD-5347] Replace filelength with file_size

Replace use of filelenght with std::filesystem::file_size
sqlite3vfs is using file descriptors so filelength is just renamed

[EGD-5386] Fix tests in event table

Fix leap year handling in events table entry creation
Set hours/minutes during events table entry creation

[EGD-5737] Merge master into experimental

Keep experimental up to date with changes from master

[EGD-5737] Merge master into experimental

Keep experimental up to date with changes from master

[EGD-5332] Fix heap size and other merge fixes

After merge with master we are unable to run any application
It was caused by the insufficent heap size

[EGD-5737] Merge master into experimental

Keep experimental up to date with changes from master

[EGD-5737] Merge master into experimental

Keep experimental up to date with changes from master

[EGD-5145] Fix remove vfs include from UT

Deprecated vfs is no more accessible. Deleted old includes.

[EGD-5737] Merge with master

Keep experimental up to date with changes from master

[EGD-5098] Fix and remove old vfs class

Fix and remove global vfs object remove all old data
included in the vfs.hpp class

[EGD-5088] Change new filesystem implementation

Removed deprecated vfs calls from all applications.

[EGD-5387] Volte settings change problem solved

Volte settings made global. Merge issue regarding screen lock resolved

[EGD-4889] Fix add/edit contact from dial window

Original behaviour (from dial window) was that user-provided number
was send to db with partial match query. This could cause more than
one result, with no further selection rule. Solution to this
particular behavior was to switch to full number match query.

Additionally problem with unrecognizable prefixes in user-provided
numbers was solved.

[EGD-5043] Add emergency call window

According to PurePhone design emergency call
window is needed after "SOS" callback at the screen lock.
This PR introduce implementation of emergency call window
and also refactor in the enter number window. Both windows
derives from new number window.

[EGD-4708] Add backend of multiday events handling

-sql req for multiday events handling
-Add UT
-Add markEventsInDays method
-Add new query for day filter

[EGD-5287] Add Languages window

- add LanguagesWindow,
- add GetCurrentDisplayLanguageRequest message used for
  sending request from LanguagesModel,
- add GetCurrentDisplayLanguageResponse message sent by
  ApplicationManager and handled by ApplicationSettingsNew,
- add setFocusOnElement method in ListView so current
  display language can be focused on when entering
  LanguagesWindow

[EGD-5090] Add Brownout GUI window

Gui window will appear due to brownout
event. System shutdown will be also called.

[EGD-5325] Remove using namespace directives from headers

"Using namespace" directive should not be added in headers
because this practice pollutes source files.