fake_telemetry: add functionality to handle telemetry requests

This CL adds a new class that lets gs_archive_server handle the
setup_telemetry RPC requests. This class also exracts tar.bz2 files
to the telemetry_src directory and then renames that directory to src.

TEST=Manually tested on chromeos2-devservertest. Output
and exact command can be found at http://gpaste/5618309229707264.

Change-Id: I54163b717ba2b3e093336a27a6935bab9a317e84
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/dev-util/+/2315611
Tested-by: Sanika Kulkarni <sanikak@chromium.org>
Commit-Queue: Sanika Kulkarni <sanikak@chromium.org>
Reviewed-by: Congbin Guo <guocb@chromium.org>
Auto-Submit: Sanika Kulkarni <sanikak@chromium.org>
2 files changed