Integrate Diviner with global search

Summary: Fixes T7458. Integrates #diviner into #applicationsearch by indexing DivinerLiveBook and DivinerLiveSymbol search documents. Depends on D13157.

Test Plan: Ran ./bin/search index --all --type BOOK and ./bin/search index --all --type ATOM and then searched for various symbols via global search.

Reviewers: epriestley, #blessed_reviewers

Subscribers: Korvin, epriestley

Maniphest Tasks: T7458

Differential Revision: https://secure.phabricator.com/D13090