[MOS-636] Added MMI/USSD confirmation

USSD/MMI codes are now confirmed after they are sended.

[MOS-000] Fixed minor issue in db migration script

* Removed doubled copyright header from 'up/down/devel.sql' when committing
databases.
* During installing, 'devel.sql' was created even if specific revisions
didn't contain one.
* Removed unnecessary product-specific .lua scripts.

[BH-000] Update changelog for 1.8.2 and 1.9.0

.

[CP-1837] Random crashes while copying files

Use ConstMemoryConstrainedFileRef newly added to taglib

[CP-1825][BH-1660] Update while on onboarding screen

Commit DB changes

[MOS-000] Added tool for translations verification

Added script for verifying if the translation json:
- has duplicates
- has empty entries
- has missing entries
It has possibility to fix those files by removing the duplicates
and pretty-printing the file without duplicates

[CP-1797] Low battery connection with mc is possible

Decrease critical battery level from 10% to 5%
Add a new entry to the security endpoint in order to block MC
when the phone battery level is critical

[MOS-946] USSD contacts

Fixed adding USSD codes to phonebook.

[BH-1650][BH-1651] Fix the frontlight settings

Run the frontlight settings in "on demand" mode now
turn on the backlight with the proper intensity.
If the device is idle in the frontlight settings the backlight
isn't turn on after backing to the main window.

[MOS-927] Fixed search engine labels

Fixed another regression introduced by the previous PR.

[MOS-177] Fix request factory UT are uncommented

Cellular call request factory unit test was commented out
due to failing cases. After MOS-944 failng cases are updated
and all tests are passing.

[CP-1842] Extremely long title tag causes delay when loading Relaxation songs list

Fixed by limiting the maximum text length in relaxation main window

[CP-702] Add API for managing templates order

This API allows for managing message templates order.
DB Migration: adding a new column to templates tables.

[MOS-969] Unify GUI action after contact adding

Fix of the issue that after adding new contact
window with contact details was shown, whereas
after adding new contact with the same number
as the one already present in another contact,
list of all contacts was shown.
Minor cleanup.

[MOS-942] Fix access to contacts when onboarding in progress

During onboarding, the user could add new contacts
by entering the emergency call screen.

[MOS-000] Fix duplicated Swedish translations

Remove redundant, duplicated Swedish translations
that have been found by translations checking
script.
Minor fix in Polish translation.

[MOS-000] Update changelog

Updated changelog for 1.7.0 version

[MOS-178] Add input mode displaying timeout

Added timeout for displaying selected input
mode - now it automatically disappears
after 3 seconds since last change was made.

[MOS-924] Fix redundant logs about CSQ reporting mode

When the modem was turned off (e.g. due to a discharged battery),
CSQ reporting mode logs caused logger buffer overflow.

[MOS-000] Update tools/misc

Sub-repo update to latest master