add option to include authority details when getting list of authorities

[elrayle]

Simple Listing (what already exists)

http://localhost:3000/qa/list/linked_data/authorities http://localhost:3000/qa/list/linked_data/authorities?details=false

Produces output like...

[ 'oclc_fast', 'loc', ...]

Listing with Details (new)

http://localhost:3000/qa/list/linked_data/authorities?details=true

Produces output like...

Term with no subauthorities OR fetching term across subauthorities

{
  "label":"oclc_fast term (QA)",
  "uri":"urn:qa:term:oclc_fast",
  "authority":"oclc_fast",
  "action":"term",
  "language":["en"]
},

Search across subauthorities

{
  "label":"oclc_fast search (QA)",
  "uri":"urn:qa:search:oclc_fast",
  "authority":"oclc_fast",
  "action":"search",
  "language":["en"]
},

Search within a subauthority

{
  "label":"oclc_fast search topic (QA)",
  "uri":"urn:qa:search:oclc_fast:topic",
  "authority":"oclc_fast",
  "subauthority":"topic",
  "action":"search",
  "language":["en"]
},

NOTES ON LANGUAGE:

• QA supports requests for results to be returned in multiple languages, so the language is an array. * The language shown is what is configured in the authority. If not configured in the authority, it is the site default language.
• The language does NOT specify what the authority defines as supported languages. That information is not configured in QA authorities.information.
• A user (defined as the caller, which in this case is Sinopia) can request an alternate language by setting accept_language in the request header or by passing in the language in the lang parameter of the QA request URL.