Refactor DevSkim Tests into integrated rule based "must-match" and "must-not-match" fields

[gfs]

DevSkim repo contains tests for the old "Test" command. This is obviated by the built in validation included by the must-match and must-not-match fields of AI based rules in 0.7. We should leverage the existing work done to create these test cases by integrating them into the rules themselves per the new format.