Modernize Script-and-Regex linter for ConfigurationDriven

Summary: Support and prefer configuration from .arclint over Configuration Manager

Test Plan: arc lint with several combinations of values in .arcconfig and .arclint.

Reviewers: joshuaspence, epriestley, Blessed Reviewers

Reviewed By: joshuaspence, epriestley, Blessed Reviewers

Subscribers: vrusinov, jpoehls, Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D10704