Anjay 3.5.0

BREAKING CHANGES

• Reversed the order of calling the delivery_handler callback vs. canceling
  the observation when sending notifications with 4.xx or 5.xx code; this change
  is breaking only for direct users of avs_coap API

Features

• Added APIs for suspending and resuming standalone downloads as well as
  Firmware Update and Advanced Firmware Update PULL-mode downloads
• Added standalone versions of the Security and Server object implementations,
  that can be customized by the end users
• Added definitions for common Core Object IDs in the public API
• Removed potentially faulty assertion in code generated by anjay_codegen.py
• (commercial feature only) added anjay_sim_bootstrap_calculate_md5()
  function that allows verification whether SIM Bootstrap data has been changed
  (e.g. as a result of SIM OTA)

Improvements

• Rewritten Send-based reporting in Advanced Firmware Update in such a way that
  it will now work with custom implementations of the Server object
• Simplified the CoAP downloader implementation so that the
  get_remote_hostname socket operation is no longer necessary for download
  resumption
• Made handling of initial peer CSM messages in CoAP+TCP asynchronous
• Updated the documentation with more descriptive warnings about functions that
  require extra care to maintain thread safety
• Removed const qualifier from MAKE_URI_PATH() compound literal which
  triggers a plausible compiler bug on IAR EWARM v9.30

Bugfixes

• Fixed a critical bug that caused Anjay to crash when sending notifications
  with 4.xx or 5.xx code over TCP
• Fixed a regression introduced in 2.13.0 that prevented the Firmware Update
  and Advanced Firmware Update from compiling without the
  ANJAY_WITH_DOWNLOADER configuration option enabled
• Fixed a condition where the Register or Update messages could be erroneously
  regenerated when refreshing server connections while already performing a
  Register or Update request
• Fixed a condition where the connection could be erroneously retried
  automatically when a fatal failure was expected
• Decoupled the WITH_AVS_COAP_TCP and ANJAY_WITH_LWM2M11 configuration
  options so that they can be set independently as intended
• Fixed the devconfig script and Github Actions configuration for better
  compatibility with building on macOS
• Refactored TCP binding handling in integration tests for more reliability
• Fixed the case where CoAP+TCP Abort message could erroneously be sent multiple
  times
• Loosened some time constraints in Advanced Firmware Update tests
• Fixed supplemental iid sort in Advanced Firmware Update
• Fixed too early restart while performing an upgrade using Advanced Firmware
  Update module in Anjay demo app
• Fixed too early persistence write while performing an upgrade using Advanced
  Firmware Update module in Anjay demo app