- get_all_ietf_slices method added to IETFSliceHandler
- get method of NSS_Services adapted to retrieve all IETF Slices.

- slice2 datamodels added to IETF Slice NBI tests

- dummy post /restconf/data endpoint added
- `ietf-nss` removed from ietf slice NBI path

- update changed to put in connection group endpoints
- "network-slice-services" field as the root of IETF Slice NBI made optional

Merge branch 'develop' into feat/237-elaborate-ietf-slice-nbi-to-support-adding-deleting-new-sdp-connection-group-and-match

Resolve "(CTTC) Define fields to specify type of link"

See merge request !315

- Add logic to show link type
- Minor code formatting

- Added logic to manage link type
- Corrected deprecated method datetime.utcnow()

- /restconf/data endpoint added as a dummpy endpoint to TFS NBI
- connection group endpoint added to TFS NBI
- ietf_slice_handler enhanced to support TFS NBI
- slice json test files added

Merge branch 'develop' of ssh://gifrerenom_labs.etsi.org/tfs/controller into feat/245-cttc-define-fields-to-specify-type-of-link

Resolve "(CTTC) Implement methods to retrieve TopologyDetails in NBI"

See merge request !316

- Added methods to retrieve TopologyDetails

- Corrected POST/DELETE methods

- Added LinkTypeEnum

- Corrected Link.link_type field

Resolve "(CTTC) Fix CI/CD pipeline end-to-end tests not passing"

See merge request !299

- Reverting to Arista cEOS 4.32.2F

- Removing unneeded log message

- Updated version of Arista cEOS to 4.33.1F

- Updated version of Arista cEOS to 4.32.2F

- Code cleanup

- Disabled DEBUG on Service component

- Updated libyang python bindings to 2.8.4

- Corrected cleanup of interfaces in internal libyang yang validator data model
- Add libyang examples
- Updated libyang python bindings to 2.8.4

- Refining code

- Refining code

- Refining code

- Refining code

- Added debug log messages

- Added logic to free libyang objects on Interface handler

- Updated version of Arista cEOS to 4.31.5M

- Disabled DEBUG on Device component

- Added additional dumps of router running configs

- Added dump of router running configs