fix(automation): add downstream subscriber to configureDevice

See merge request teraflow-h2020/controller!76

Improved synthetic sample generator for Device component

- split in 3 phases: bootstrap devices, manage service, cleanup
- created separate scripts to trigger it
- extended deploy script to deploy dashboards and webui
- improved logging in deploy script
- added dependency image update in deploy script
- added waits for deployments to ensure proper deployment
- added export of service port for InfluxDB
- improved definition of objects for the test

- added logging for debug purposes
- removed activation of services and left this responsibility to service component

- temporarily limited endpoints in classification to 2 endpoints for simplicity

- defined deterministic names for sub-services and sub-connections
- added/improved logging statements for debug purposes
- added configuration of OLS/TAPI sub-connections
- temporarily limited endpoints in classification to 2 endpoints for simplicity
- solved bug in service/connection removal

- Tune EmulatedDriver to generate plottable synthetic data
- Refine cancellation of monitoring loops
- Solve issue with backend keys used to locate the appropriate KPIId dor collected samples from endpoint_monitor_resource_key

- Extend MockServicerImpl_Service to activate service upon ServiceUpdate
- Correct function grpc_message_list_to_json in common.tools.grpc

- integrate properly with Kubernetes
- request monitoring of KPI Sample Types based on endpoint settings
- comment unneeded log
- store in Influx sample type as a descriptive string, not as an id
- arrange Object symbols used in unitary test

Add Grafana Dashboards to WebUI

See merge request teraflow-h2020/controller!77

- corrected common retry decorator and associated clients
- corrected sample timestamp generation from Device
- temporarily deactivated unneeded OFC tests

- Extended local unitary tests with monitoring component.
- Added OFC Demo scripts to quickly check logs.
- Added monitoring to OFC Demo deploy scripts.
- Partitioned OFC Demo run tests script in blocks.

Integrate minor corrections in WebUI

See merge request teraflow-h2020/controller!75

Common:
- added grpc_to_json methods
- refined rpc_method_wrapper logging

Compute:
- improved definition and reusability of code in unitary tests
- added loggers for debug purposes

Context:
- added REST methods to dump content of the database in raw text and HTML formatted

Service:
- added many logs for debugging purposes

OFC22 Test:
- corrected scenario definition constants
- deactivated part of the tests for debugging purposes
- exposed Context REST API in a ficed NodePort

Expose WebUI in fixed NodePort

See merge request teraflow-h2020/controller!74