Allow Drydock blueprints to be searched by name

Summary:
Ref T10457. The ngram indexing seems to be working well; extend it into Drydock.

Also clean up the list controller a little bit.

Test Plan:

• Ran migrations.
• Searched for blueprints by name.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10457

Differential Revision: https://secure.phabricator.com/D15389