Merge branch 'fix/54-notificatoins-from-context-are-incomplete' into 'develop'

src/common/message_broker/backend/nats/NatsBackendThread.py

src/common/tests/MockMessageBroker.py

src/common/tools/context_queries/Topology.py

src/context/service/ContextServiceServicerImpl.py

src/context/service/Events.py

src/context/service/database/Connection.py

src/context/service/database/Context.py

src/context/service/database/Device.py

src/context/service/database/EndPoint.py

src/context/service/database/Events.py

src/context/service/database/Link.py

src/context/service/database/PolicyRule.py

src/context/service/database/Service.py

src/context/service/database/Slice.py

src/context/service/database/Topology.py

src/context/service/database/models/TopologyModel.py