Pre release CI/CD fixes

See merge request !136

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

fix: policy and automation generated sources

See merge request !134

NetSoft Hackfest extensions, gNMI Driver, gNMI L3NM Service Handler, multiple fixes

See merge request !132

- Eliminated hardcoded attack connection IPs and introduced a more flexible approach.
- Incorporated a new RPC method and protobuf message in the CAD proto to facilitate setting the attack connection IPs by an external component to enable computation of the ML model's performance for testing purposes.
- Introduced a new environment variable in CAD to enable or disable testing of the ML model accuracy.

Rewrote all docstrings to comply with PEP 257 and added docstrings for all functions that did not have it in CAD and AM service implementations.

Merge branch 'feat/hackfest-r2.1' of https://labs.etsi.org/rep/tfs/controller into feat/hackfest-accumulated-fixes

Minor fixes

See merge request !131

Merge branch 'feat/cttc-interdomain-r21' of https://labs.etsi.org/rep/tfs/controller into feat/cttc-interdomain-r21

Migration of Interdomain component and OECC/PSC'22 test to Release 2

See merge request !119

OpenConfig driver multivendor & ACLs

See merge request !104