* Features
- Support YAML configuration file
* Yaml validation default value
- Service request handling
- Update API Server name/structure
- N2 info notify
- Updated NGAP library to 38.413 V16.14.0
- Location Report Notification for N2 Handover
- LMF Determine Location & DownlinkUeAssociatedNrppaTranport support
* Fixes
- Fixed: Add NSSAI info in AMF profile to send to NRF
- Fixed: Http1/2 - only spawning one HTTP server
- Fixed: HTTP2 support for Configuration/Location-related APIs
- Fixed: Display NRCellID in hex to associate between UE and gNB
- Fixed: Use AMF ID as string to register to NRF
- Added missing HTTP2 APIs for N1 Message Notify, N1N2MessageSubscribe/Unsubscribe, Status Notification
- Free allocated memory in Destructor of NGAP msg instead of using Delete operator
- Added retry mechanism for NF Registration/Update
- Removed unnecessary config parameter: generate_random (database)
- Fixed N1/N2 message unsubscribe API
- Fixed issue when decoding PduSessionResourceSetupResponse
* 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
* Miscellaneous
- Code refactoring: ITTI between SBI and other tasks, NGAP IEs
- Code cleanup: NAS IEs, N2, removed usused code, Used new instead of malloc/calloc for N2