[EGD-5810] Fix for old batteries

Temporary fix for old batteries

[EGD-5028] Add batt critical level db

Battery critical level sotred in
database.

[EGD-5673] Settings and FileIndexer initialize

Modified query for settings to insert default values to db.
Removed nonascii characters from file_indexer.

[EGD-5311] Create Date&Time main window

- add DateAndTimeSettings class and
  dateAndTimeSettings global var
  (cache for storing date and time related settings),
- add DateAndTimeChangeRequest messages and proper
  methods in app::manager::Controller for sending them,
- handle DateAndTimeChangeRequest messages in ApplicationManager,
- add SettingRightItem::Text case for OptionSettings
  to provide possibility to add text
  on the right side of particular option,
- rename fields in db (settings_tab table):
  gs_time_format_12 to gs_time_format
  and
  gs_time_date_format to gs_date_format
- create only main Date&Time window.
  Sub windows will be added in separate task.

[EGD-5519] Lockscreen does not ask for pin after reset solved

Name of parameter for lockscreen mode on/off updated in sql script.
Register on param lockscreen only reacts on value change.

[EGD-4831] Add license headers to c, h and sql files

Add license headers to `h`, `c` and `sql` files as this files haven't
been checked previously, script now to automatically updates current
year in existing licenses.

Merge branch 'master' into stable

[EGD-4995] Add changing passcode windows flow

Implement changing passcode windows flow

Merge commit 'c7dd6b399' into stable

Merge branch 'master' into stable

[EGD-5247] bring back settings db definition script

Repair settings scripts, deleted in previous commits.

[EGD-5247] Bring back settings db definition script

Restore accidentally deleted script with settings database definition.

[EGD-4914] input and display languages connection to settings problem… (#1188)

* [EGD-4914] input and display languages connection to settings problem solved

Merge branch 'master' into stable

Merge branch 'master' into stable

[EGD-4872] settings keep changed value (#1177)

* [EGD-4872] settings keep changed value

* [EGD-4872] remove unused script

[EGD-4778] Add Bluetooth settings to db (#1174)

[EGD-4725] default sim value (#1145)

* [EGD-4725] fixed lack of sim at startup

Merge branch 'master' into stable

[EGD-4705] default settings values names fixed (#1137)