prototype: Add brands as first class config

Keeping brands/projects decoupled for now since they go to separate
places in the end.

BUG=None
TEST=None

Change-Id: I5e24bdcb7cdf61cea0f20c3d812522309ff27144
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/infra/proto/+/1987944
Reviewed-by: C Shapiro <shapiroc@chromium.org>
Reviewed-by: Ned Nguyen <nednguyen@google.com>
Commit-Queue: C Shapiro <shapiroc@chromium.org>
Tested-by: C Shapiro <shapiroc@chromium.org>
Auto-Submit: C Shapiro <shapiroc@chromium.org>
3 files changed