names vocab: allow names vocab to have 2 types of objects

[jrcastro2]

There will be 2 types of objects in the names vocab: the ORCID objects, and the CERN objects.

The ORCID objects are inserted or updated via the automatic jobs/dump. Its IDs cannot really be changed as all the code relies on having the ORCID as the id:

- affiliations:
  - name: Northwestern University
  family_name: Findler
  given_name: Robby
  id: 0000-0002-4245-2000
  identifiers:
  - identifier: 0000-0002-4245-2000
    scheme: orcid

The CERN objects could look like this (check props definition in other vocabs):

- affiliations:
  - name: <affiliations from CERN db>
  family_name: Findler
  given_name: Robby
  id: <encrypted-person-id>
  props:
    e-mail: <email>
    username: <username>
    is_cern: True
  identifiers:
  - identifier: <encrypted-person-id>
    scheme: CERN

In general, the vocabularies schemas and features should be enhanced to support:

1. extra fields for the names. It looks like that it is not the case today, see here.
2. vocabularies should support deprecation.

On ldap sync the authors synced should be added as names

[ntarocco]

At the end, we will need to update this issue with the latest implementation