2021-Q4 Milestone:

* Periodic Registration Update
* Support for Event Exposure (Registration State Report)
* Implicit Deregistration Timer
* Mobile Reachable Timer
* Mobility Registration Update
* NRF Selection (via NSSF)
* Fix for validation of SMF Info
* Fix RAN UE NGAP Id
* Fix SMF Selection SD
* Fix NSSAI mismatch
* Fix Service Request
* Fix HTTP2
* Fix MCC such as 001
* Docker optimization