- 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.

- comment is added in Kpi DB file for future reference.

- comment is added in Kpi DB file for future reference.

- comment is added in Kpi DB file for future reference.

- Updated DAD requirements.
- Updated READMEs of DAD, CAD and AM.
- Removed old comments in DAD and CAD configuration files.

- Added/Updated headers
- Added script to update copyright headers

- monitoring/test_monitoring.py: provides a basic testing skeleton
- monitoring/requirements.in/.txt: updated with pytest
- monitoring/genproto.py: added instructions to import generated Python modules using "from . import ..." instead of "import ..."; otherwise, pytest and other possible modules doing imports might complain.
- monitoring/monitoring_server.py: packed start_server and stop_server functionaity to simplify test definition, minor formattings, bug resolutions and improvements in package import.
- monitoring/monitoring_client.py: minor formattings, bug resolutions, and improvements in package import.