[CP-225] Create contact using post method, and update it using put

Methods were used incorrectly.
Now they are aligned with requirements.

[BH-669] Fix CMake in service-appmgr

Fix CMake in service-appmgr

[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

[CP-215] Expose current operator name in service desktop API

Get current operator name from cellular modem,
and expose it in service desktop API to let
Mudtia Center use it.

[EGD-3171] Fix key shortRelease on app switch

Fix of shortRelease on app switch while long
press applied on previous window

[CP-325] Request reboot code adjusted to work with harness

We have no controll on UART over the device flushing, minimum code
added to assure that data could be flushed
We do not close services when these are closed with reason

[CP-280] Implement send file procedure

Implemented Send File operation on FS endpoint

[EGD-7010] Remove sensitive data from logs

Sensivite data like first/second name, messages and notes content,
dialed gsm numbers etc are removed from logs to guarantee security for
Pure users.

[EGD-7111] Restore calendarEvents endpoint number

Added dummy calendarEvents entry to restore EP numbering

[EGD-7044] Strip down calendar code

Stripping the calendar code to provide only
MVP defined functionalities

[BH-464] Moved USB stack to third-party dir

Moved USB stack, defined separate library and its dependencies,
assigned library to specific sections in linker script, reduced
build time by more than 10 percent thanks to ending building
usb stack file both in module-bsp and module-vfs

[CP-253] Add checksum to package transfer

Added CRC32 to FS download command

[CP-270] Replace CRC32 library

Replaced CRC-32 lib from csbruce.com/software/ with
github.com/stbrumme/hash-library

[CP-183] Do not log sensitive data in service-desktop

Remove potential printing of user-sensitive data.

[CP-163] Implement FS Endpoint read file

Implemented get file opration in FS Endpoint

[CP-206] Report Pure serial number in USB descriptors

Added serial number to USB device descriptor

[CP-200] Delete file with old OS version

Removed update file after a successful update or
in case of an interrupted download.

[CP-200] Revert Delete file with old OS version

This reverts commit e6de85dbc19963e77144b192b9f40fbdc25a7e0d.

[BH-374] Librarize application-antenna

Add apps-common, librarize application-antenna

[CP-200] Delete file with old OS version

Removed update file after successful update