Resolve "(TID) Add support to NBI to export the L3 inventory"

See merge request !252

Merge branch 'develop' of ssh://gifrerenom_labs.etsi.org/tfs/controller into feat/174-tid-add-support-to-nbi-to-export-the-l3-inventory

Resolve "(TID) Add support for IETF slices"

See merge request !218

Merge branch 'develop' of ssh://gifrerenom_labs.etsi.org/tfs/controller into feat/tid-add-support-for-ietf-slices

Resolve "Improve common framework to identify deployed components"

See merge request !270

Merge branch 'develop' of ssh://gifrerenom_labs.etsi.org/tfs/controller into feat/198-improve-common-framework-to-identify-deployed-components

Resolve "(CTTC) Generalize Service Database management"

See merge request !267

- Added method to check deployed microservices
- Extended WebUI to activate tabs according to deployed microservices
- Extended Service and PathComp to activate selective parts of code depending on deployed microservices

- 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