Expose modern *.search Conduit endpoints in Almanac

Summary: Fixes T10411. Ref T10246. There are probably still some rough edges with this, but replace the old-school endpoints with modern ones so we don't unprototype with deprecated stuff.

Test Plan:

• Made a bunch of calls to the new endpoints with various constraints/attachments.
• Created and edited services, devices, interfaces, bindings, and properties on everything.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10246, T10411

Differential Revision: https://secure.phabricator.com/D15329