controlled_access_terms content types as taxonomies

[seth-shaw-unlv]

Based on our conversation yesterday related to #896 we decided I would explore turning the Islandora-CLAW/controlled_access_terms content models (People, Corporate Bodies, Families, Geographic Locations, and Subjects) into taxonomies; because they are means of organizing content, not necessarily content themselves.

Tagging: @rtilla1 @rosiel @dannylamb

[seth-shaw-unlv]

Based on a conversation with @rosiel in IRC:

• Preferred name will no longer be required.
• We are dropping auto_entitylabel (although we will point people to it in case they want it). This may result in double-entry (but that is, in many cases, desirable; especially for migrations).

[rosiel]

The idea is that the "Name" of the taxonomy term (the built-in pseudo-field thing, equivalent to the "Title" of a node) will be a free-text place to enter the Agent's name string as desired. This way it will not be tied to a specific formatting of structured name elements, which prevents us from locking in a single cultural model of "names".

[Edit: and allows you to incorporate disambiguation information as needed, such as dates. And allows you to use values from LC's Name Authority File.

But also, the Preferred Name, a https://www.drupal.org/project/name field, will be available if you do want to represent some names as structured. Whether you implement something akin to auto_entitylabel to avoid the requirement for double-entry will be up to you.]

[dannylamb]

Resolved via Islandora/controlled_access_terms@66bab1a