Resolve "(CTTC) Generalize Service Database management"

See merge request !267

- Improved Kafka scripts.
- Updated manifests to handle ports for backend and frontend.
- Changed the return type of a method in settings to `int`.
- Added DB deployment in the service's main file.

Refactor in Analytics, Telemetry, and KpiManager Services and Manifest Files to Reflect Generic DB Changes.

- Improvements made to `tfs.sh` script.
- Added `CRDB_DATABASE` environment variable to all monitoring service manifest files and the context manifest file.
- Removed the DB engine file from all monitoring services and moved it to `common.tools.database`.
- Each `<service_name>_DB.py` will now retrieve the database name from the environment variable.

Resolve "(OPT) Integrate QKD tests in TFS CI/CD pipeline"

See merge request !268

Merge branch 'develop' of ssh://gifrerenom_labs.etsi.org/tfs/controller into feat/195-opt-integrate-qkd-tests-in-tfs-ci-cd-pipeline

Resolve: "(OPT) QKD Application Register (new component)" (code fixes)

See merge request !269

Merge branch 'develop' of ssh://gifrerenom_labs.etsi.org/tfs/controller into feat/134-opt-qkd-application-register-new-component

Merge branch 'feat/195-opt-integrate-qkd-tests-in-tfs-ci-cd-pipeline' of https://labs.etsi.org/rep/tfs/controller into feat/195-opt-integrate-qkd-tests-in-tfs-ci-cd-pipeline

Merge branch 'develop' of ssh://gifrerenom_labs.etsi.org/tfs/controller into feat/195-opt-integrate-qkd-tests-in-tfs-ci-cd-pipeline

Resolve: "(OPT) QKD Application Register (new component)"

See merge request !265