protos: Add license details to proto repo

I'm mostly doing this to poke our new autoroller to make sure that it works.
https://autoroll.skia.org/r/cros-proto-infra-autoroll

Change-Id: I98dc638eec9e884a0ca561358f2535c5c7812479
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/infra/proto/+/1521069
Tested-by: Sean Abraham <seanabraham@chromium.org>
Trybot-Ready: Sean Abraham <seanabraham@chromium.org>
Reviewed-by: David Burger <dburger@chromium.org>
Commit-Queue: Sean Abraham <seanabraham@chromium.org>
2 files changed
tree: 535de1f8a0ee75a5dd1a39d8c1e906d7824e4efb
  1. go/
  2. infra/
  3. recipes/
  4. src/
  5. .gitignore
  6. generate.sh
  7. LICENSE