Update of Register Item status values

[nicholascar]

This update to the Register Item status values vocabulary:

• improves definitions of Concepts
• includes broader and narrower Concepts
  • all original concepts retained
  • the original vocab had 5 Concepts, this now has 11
  • new terms from the British government's Linked Data registry work, 2012
  • provenance of all concepts recorded, per Concept
• includes a Concept Scheme hierarchy for all Concepts
• includes an ISO19135 Concepts and All Concepts Collections

This updated vocabulary is fully compatible with the original vocab but contains more information and better annotations.

A SKOS-only Markdown documented version of this new version, generated using pyLODE UI is presented for review at https://github.com/surroundaustralia/NamingAuthority/blob/master/definitions/conceptschemes/status.md. This Markdown document should not be included in the OGC's repo and is presented here for review only.

[ghobona]

@nicholascar Thanks for the update.

I'm proceeding to approve the PR now. However, we will need to propose a policy revision at the next OGC Member Meeting to formally approve the new status codes.