Added buffer to centralized attack detector component for it to wait until it receives BATCH_SIZE requests until it makes an inference

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

- updated old gitlab.com URLs by new labs.etsi.org URLs.
- updated Context to use secrets generated by CockroachDB and NATS

- Fixed object names in L3_* manifest files
- Corrected object name in scale commands

- Arranged requirement versions of L3 CentralizedAttackDetector
- Fixed object names in L3_* manifest files
- Corrected error with log file name generated for deploy stages during TFS deployment.

Context service:
- corrected port numbers

Device service:
- corrected port numbers
- upgraded gitlab-ci configuration

This reverts merge request !3