[Databus Integration] Add button to the OEP to register a dataset & metadata on the databus

[jh-RLI]

Description of the issue

Register data and metadata from OEP via button on databus

https://energy.databus.dbpedia.org/chrwm/oedatamodel_api/modex_tech_chp_combined_cycle/v1

Ideas of solution

Use existing script that utilises OEP API.

https://github.com/LOD-GEOSS/databus-snippets

https://github.com/LOD-GEOSS/databus-snippets/blob/4ae9bb00f765b6d8571e38a57e12ec242a2e9394/oep_metadata/oep_databus_registration.py

Workflow checklist

• I am aware of the workflow in CONTRIBUTING.md

[jh-RLI]

This could be part of the changes described in #1359 .
We can add a button "register on databus" as part of the publising process / or next to a "publish data" button.