Conduit project.query allow query by names

Summary:
The ability to query by name(s) already exists
but is not bound to the conduit method. This binds it.

Test Plan:
Tested locally

echo '{"names": ["myprojectbyname"]}' | arc call-conduit project.query

Reviewers: epriestley, Blessed Reviewers

Reviewed By: epriestley, Blessed Reviewers

Subscribers: epriestley, Korvin, 20after4

Differential Revision: https://secure.phabricator.com/D10032