Add a custom lint name hook to Phabricator
Summary: Allow Conduit method so they stop raising lint warnings. See D874.
Test Plan: Ran "arc lint" on conduit files and was no longer given frivolous
warnings.
Reviewers: nh, jungejason, tuomaspelkonen, aran
Reviewed By: nh
CC: aran, nh, epriestley
Differential Revision: 875