Cleanup and addition of license headers to files

README.md

add_license_header_to_files.sh

clean_testing_environment.sh

configure_dashboards.sh

data/topo_nsfnet.json

deploy_in_kubernetes.sh

install_development_dependencies.sh

manifests/.gitlab-ci.yml

manifests/computeservice.yaml

manifests/contextservice.yaml

manifests/dbscanservingservice.yaml

manifests/deviceservice.yaml

manifests/l3_attackmitigatorservice.yaml

manifests/l3_centralizedattackdetectorservice.yaml

manifests/l3_distributedattackdetectorservice.yaml

manifests/monitoringservice.yaml

manifests/opticalattackmitigatorservice.yaml

manifests/opticalcentralizedattackdetectorservice.yaml

manifests/prometheus.yaml

manifests/serviceservice.yaml