Merge branch 'amf_sbi_model' into 'develop'

model/amf/5GsUserState.cpp

model/amf/5GsUserState.h

model/amf/5GsUserStateInfo.cpp

model/amf/5GsUserStateInfo.h

model/amf/AllowedNssai.cpp

model/amf/AllowedNssai.h

model/amf/AllowedSnssai.cpp

model/amf/AllowedSnssai.h

model/amf/AmfCreateEventSubscription.cpp

model/amf/AmfCreateEventSubscription.h

model/amf/AmfCreatedEventSubscription.cpp

model/amf/AmfCreatedEventSubscription.h

model/amf/AmfEvent.cpp

model/amf/AmfEvent.h

model/amf/AmfEventArea.cpp

model/amf/AmfEventArea.h

model/amf/AmfEventMode.cpp

model/amf/AmfEventMode.h

model/amf/AmfEventNotification.cpp

model/amf/AmfEventNotification.h