CODEOWNERS file syntax fixed (#1072)

Github CODEOWNERS file syntax fixed

[EGD-4414] Add support for call barring MMI (#1057)

 * cover MMI requests with following codes:
   33,331,332,35,351,330,333,353
 * moved logic of building command string
   to base class

[EGD-4484] Cellular - read buffer on UART Line Idle (#1065)

[EGD-4483] fix for put_64 in libmtp (#1064)

changelog: update changelog for v0.48.1 (#1063)

[EGD-4395] added call test case and screen unlock fix (#1060)

Co-authored-by: SP2FET <bartosz.cichocki@mudita.com>

[EGD-4155] Created a code example of possible implementation of generic data pack for actions. (#957)

[EGD-4373] Fix for the unexpected call to onClose() method. (#1048)

[EGD-4371] Fixed saving a draft message for a phone number (#1041)

[EGD-4399] no response fix (#1061)

[EGD-4400] added contact ID sending after contact adding

Co-authored-by: SP2FET <bartosz.cichocki@mudita.com>

[EGD-4153] Use actions instead explicit applications switch. (#1032)

[EGD-4373] Fix for changing the content of option window. (#1054)

[EGD-3289] Changed fonts of message snippet and its prefix. (#1058)

[EGD-4475] ScreenlockCheckEvent handler bug fix (#1062)

[EDG-4346] Load script to init contacts database (#1013)

[EGD-4470]Fix no send init message on ready (#1059)

Fix: no send init message on sim ready

[EGD-4367] sim passcodes flow implementation (#1033)

[EGD-4413] New MMI codes support (#1051)

 * added support for CLIP, CLIR, COLP and call waiting
 * fixed service groups according to GSM technical data

changelog: update changelog for v0.47.1 (#1056)

Some minor grammar changes to the previous release added in the process.

[EGD-4383] Settings moved from namespace Settings to namespace settings (#1007)

* [EGD-4383] Settings moved from namespace Settings to namespace settings