More changes on adapting the monitoring service

src/monitoring/client/__init__.py

src/monitoring/client/monitoring_client.py

src/monitoring/genproto.sh

src/monitoring/proto/__init__.py

src/monitoring/proto/context_pb2.py

src/monitoring/proto/context_pb2_grpc.py

src/monitoring/proto/monitoring_pb2.py

src/monitoring/proto/monitoring_pb2_grpc.py

src/monitoring/service/__init__.py

src/monitoring/service/monitoring_server.py

src/monitoring/tests/test_monitoring.py