Empty CTS Verifier test for display modes.

This change contains the general structure of the test, which
consists of three steps - no display, 2160p display and
1080p display. Following CLs will contain test logic.

Screenshot 1: https://screenshot.googleplex.com/UrrPL2TgiJ2
Screenshot 2: https://screenshot.googleplex.com/N8RZqmA4PDO
Screenshot 3: https://screenshot.googleplex.com/we4v7GyUfGt
Bug: 142391735
Test: Manual

Change-Id: I0ac64d8fde30da82334113a4cfb1b9777843e000
5 files changed