Indication dataset being part of NSIP/ERPD, similarly to HVD datasets

[jakubklimek]

In NSIP/ERPD, there is an (urgent - 2 weeks) need identified on how to denote datasets that are not open, but accessible through NSIP/ERPD(DGA implentation).

One suggestion is adding a type to https://op.europa.eu/en/web/eu-vocabularies/dataset/-/resource?uri=http://publications.europa.eu/resource/dataset/dataset-type, similarly to HVD.

Otherwise, data.europa.eu seems to be set on implementing this in a proprietary way indicated by the individual NSIPs, which will IMHO severly hinder interoperability. The argument is that 2 weeks is not enough time to come up with a proper solution in communication with SEMIC 🤷🏻‍♂️.