GitLab

This adds a win-angle-rel try config to cr-buildbucket.cfg. It
also adds dummy no-op builders to luci-scheduler.cfg. This will
allow ANGLE to define a set of test distinct from the set of
tests run on the GPU FYI bots.

Bug: 822310
Change-Id: Ie42166d35ab01ddcce8d0ad637e02ba10629917d
Reviewed-on: https://chromium-review.googlesource.com/c/1341216Reviewed-by: Stephen Martinis <martiniss@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Cr-Commit-Position: refs/heads/master@{#611408}