Used Cards instead of States for Harbormaster Buildables

Summary: Switched to Obect Cards for better consistency with application search. Added Byline for colorblind/accessability (can move).

Test Plan: Tested my Harbormaster build.

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: epriestley, Korvin

Differential Revision: https://secure.phabricator.com/D8934