Resolve "Re-designing of Telemetry"

See merge request !258

Merge branch 'develop' of ssh://gifrerenom_labs.etsi.org/tfs/controller into feat/179-re-designing-of-telemetry

Resolve "KPI Management Enhancements"

See merge request !255

Merge branch 'develop' of ssh://gifrerenom_labs.etsi.org/tfs/controller into feat/178-kpi-management-enhancements

Resolve "(TID) Add inventory NBI to WebUI"

See merge request !251

Merge branch 'feat/tid-add-inventory-nbi-to-webui' of ssh://gifrerenom_labs.etsi.org/tfs/controller into feat/173-tid-add-inventory-nbi-to-webui

Merge branch 'develop' of ssh://gifrerenom_labs.etsi.org/tfs/controller into feat/tid-add-inventory-nbi-to-webui

- Unnecessary echo statements are removed from .gitlab-ci.yml file.
- "-e ALLOW_ANONYMOUS_LOGIN=yes" flag is added to allow unauthorized connection with the zookeeper.

- Created the CRDB secret (`crdb-telemetry`).
- Updated the IF conditions in the `$COMPONENT` deployment loop within the `tfs.sh` file according to telemetry service requirements.
- Added the `Telemetryservice.yaml` file to the manifest folder.
- Updated the CRDB URL in `TelemetryEngine.py`.
- Made a minor formatting change in `TelemetryModel.py`.

Merge branch 'feat/173-tid-add-inventory-nbi-to-webui' of https://labs.etsi.org/rep/tfs/controller into feat/173-tid-add-inventory-nbi-to-webui

Merge branch 'develop' of https://labs.etsi.org/rep/tfs/controller into feat/173-tid-add-inventory-nbi-to-webui

- src folder refernce is removed from header

- updated cmd in test file of KPI manager
- move kafka producer object to __init__ function.
- write JSON object to Kafka
-  Read JSON object from Kafka
- Slight to manage the affect of JSON object.
- Static methods are removed.

- tests file name is corrected.
- Telmetry frontend and backend requriements.in is updated

- Renamed the method to "KafkaKpiConsumer" to avoid conflict with the "KafkaConsumer" import in KpiApiWriter.
- Removed unnecessary imports in KpiWriterToProm.
- Added `get_service_port_grpc` call and imports in the Telemetry backend service.
- Added new libraries to `requirements.in` for Telemetry.

- GenericGrpcService inheritance is added in Telemetry backend class.
- Database folder were missing in working directory in DockerFile of Telemetry Frontend.

- start_http_server() call is move to main
- CollectorRegistory variable is removed

- src/$IMAGE_NAME/tests/Dockerfile is removed from API.
- -f is added in "docker rm -f zookeeper" and "docker rm -f kafka" in Writer file.

- docker run --name ... cmd missing (backend/frontend) after image name.

- docker build ... -target builder is removed

- TelemetryBackendService name and port is added in constants
- get_kafka_address() call added in TelemetryBackendService
- kafk topics test added in telemetrybackend test file
- get_kafka_address() call added in TelemetryBackendServiceImpl
- kafk topics test added in telemetryfrontend test file
- improvements in Telemetry gitlab-ci file
   + unit_test for telemetry backend and frontend added.
   + many other small changes

- Kafka deployment script is added in .gitlab-ci file
- call is changed to "get_kafka_address()" in KpiValueWriter.py

- Improvements in Kafka.variables files.
- In KpiValueApiServiceImpl corrected the call from "admin_client()" to "kafka_address()"

- In Kafka.variables files: get_kafka_address() and get_admin_client() is added.
- In KpiValueApiServerImpl Kafka Admin Client call is updated.
- Kafka deployment script is added.

- __main__ is added.
- DockerFile added.
- .gitlab-ci.yml file added.

- GenerateRawMetrics() add

- BackendService is restructured according to the design in report.
- ResponseListener is added in Frontend
- Improvements in test and messages files

- Changed the column type of the start and end timestamps to Float.
- Added ConvertRowToCollector() in TelemetryModel.
- Renamed the class variable from "DBobj" to "tele_db_obj".
- Renamed the local variable from "collector_id" to "collector_uuid".
- Added PublishStopRequestOnKafka() to publish the stop collector request on Kafka.
- Improved the test files.

- pytest logging is changed to DEBUG.
- ManagemetDB test is removed.
- Irrelevent imports and methods are removed from the test file.
-

- collector description is removed from TelemetryModel.
- "ConvertCollectorToRow" is added in Telemetry Model class.
- NameMapping is removed from service client and service.
- TelemetryDB object name and import is updated with correct class name.
- StartCollector is restructured.
- "PublishRequestOnKafka" is restructured.

- added start_time and end_time in proto.