Add start of script that checks subwaterfalls are consistent with main waterfall.

And fix luci-milo.cfg to pass the check:

- Add jumbo-rel bots that were on the subwaterfalls to the main waterfall
- Add two Webkit builder bots to main waterfall
- Add Deterministic Linux (dbg) to chromium.linux subwaterfall
- Make sure each bot has a single name

project_pb2.py was created by grabbing the current version of
https://chromium.googlesource.com/infra/luci/luci-go/+/master/milo/api/config/project.proto
(9a3aea9951f) and running

  out/gn/protoc --python_out=. project.proto

I also want to check that the category names are consistent across main and
subwaterfalls, but this CL is already large enough, so let's do that in a
separate change.

Bug: none
Change-Id: I0088621e3b7e7fb9698dd3f0853460105bb8ccd0
Reviewed-on: https://chromium-review.googlesource.com/c/1301795
Commit-Queue: Nico Weber <thakis@chromium.org>
Reviewed-by: Ryan Tseng <hinoka@chromium.org>
Cr-Commit-Position: refs/heads/master@{#608791}
3 files changed