Schema - Transform contact, publisher, author and maintainer to list of dicst (repeating subfields)

[mjanez]

• [ ] Adapt schemas
  • [ ] contact
  • [ ] publisher
  • [ ] maintainer
  • [ ] author
  • [ ] temporal_coverage
  • [ ] spatial_coverage
• [ ] Adapt harvesters.
• [ ] Check profiles
• [ ] Fix templates.
• [ ] Adapt ckan-pycsw

Ref: ckanext-dcat/dcat_ap_full