Tags

Pre-v2.2 release tag for testing

* Features
  - Add NRF connection handling mechanism
  - Use HTTP Request Timeout parameter from Conf file
* Fixes
  - Fix HTTP/2 server shutdown
  - Fix duplicated HTTP/1 route
  - Fix: remove PID section in main
* Tech Debt
  - Stopping support for RHEL8/Rocky8 in favor of RHEL9/Rocky9
  - Remove NRF dependency from UDR
  - Move UDR SBI models to common src git submodule
  - HTTP client cpr library refactoring effort
  - Code cleanup

* Tech debt
  - Fixed builds
  - Refactor mongoDB

* Features
  - Support YAML configuration file
    * Yaml validation default value
  - SessionManagementSubscriptionData GET ALL and DELETE apis
  - Session management subscription DATA PUT api new
  - UDR configuration APIs
  - Added support for MongoDB database choice
  - Added option to configure database port
* Fixes
  - Fixed hardcoded HTTP/2 port
  - Added missing HTTP2 for Authentication Data and Session Management Subscription Data
* Tech debt
  - Updated common models to 3GPP TS 29.571 Release 16.13.0 and moved them to the shared common submodule
  - Switching to clang-format-12
  - Published image on Docker-Hub is using now Ubuntu-22 as base image
    * Ubuntu-18 is no longer supported

2021-Q4 Milestone:

* Added HTTP2 support
* Fix build issue
* Fix static addr allocation
* Docker build optimizations

Fix build issue

Fix build issue

September 2021: Initial public release; NRF registration; Proper mySQL DB deployment management; HTTP2

Initial public release