Anjay-mbedos-client 22.08

Features

• Added support for Firmware Update object w/ mbed-cloud-client bootloader
• Added support for NUCLEO_F429ZI target
• Added support for NRF52840_DK target
• Added support for persistence of Access Control, Server and Security object
• Added support for EST (commercial feature)
• Added support for SMS binding (commercial feature)

Improvements

• Updated Anjay-mbedos to version 3.1.2
• Added support for Mbed OS 6 and Mbed CLI 2
• More sensible model number for unsupported boards is reported in Device object
  now
• Migrated to KVStore on internal flash; removed dependency on QSPIF
• Fixed memory leak present while using heap statistics (not present without them)