- Added parametrization for maximum number of workers

- Extracted constant MAX_WORKER_THREADS
- Rounded SLA values to 2 decimal digits

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

- Converted load_gen tool into a microservice
- Added simple WebUI page to manage it
- Created manifests, Dockerfile, etc.
- Created proto file to manage the load generator

- added support for microwave services
- removed DLT from default list of components
- added support to re-use endpoints in a single device for multiple connections

- added support to record load-gen operations in DLT to take performance evaluation metrics
- improved mixed request support

- added support to request slices

- added support for L3NM and TAPI services

- 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.