Telemetry binary dependencies

Telemetry needs some third-party binaries to run. They are stored in Google Cloud in chromium-telemetry bucket, and downloaded when necessary.

You can add and update binaries via telemetry/bin/update_telemetry_dependency script.

Below you can find information on some of the dependencies:

`trace_processor_shell`

A tool used to convert collected traces in newer perfetto protobuf format to a legacy json format. Source code