This is the first step in uploading histogram data instead of a gtest
special format. We  importing several new libraries:

- tools/protoc_wrapper
- third_party/protobuf
- third_party/catapult (was already used for Android)

No functional change. Only affects compilation. Protobuf support is
disabled when not available.

Bug: angleproject:5161
Change-Id: I64be0977648993b1012ff0d9e0439c5876697e36
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2497221Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>