Move FakeDisplay* from display/manager to their own component

Ozone platforms should not depend on ui/display/manager
since that is a high level build target that ultimately
can depend on ozone again, creating a dependency cycle.

This is a followup to previous "fix one instance" that fixes
all the instances, which I hope will be enough to break
the cycle blocking
https://chromium-review.googlesource.com/c/chromium/src/+/1538507

For path changes in ash:
TBR=jamescook@chromium.org

Change-Id: Ice1d8b21e9bc1709c07bd37943857b07c6093798
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1553424
Commit-Queue: Daniel Bratell <bratell@opera.com>
Reviewed-by: Daniel Nicoara <dnicoara@chromium.org>
Reviewed-by: Michael Spang <spang@chromium.org>
Auto-Submit: Daniel Bratell <bratell@opera.com>
Cr-Commit-Position: refs/heads/master@{#650472}
30 files changed