Summary:
We want to setup the initial sync benchmark to run automatically with each
commit on a separate machine. This script does just that and dumps the
results to a directory. We can then have a separate script process them
and upload them to whichever service we want.
Test Plan: Run locally
Reviewers: evan, spang, juan
Reviewed By: juan
Differential Revision: https://phab.nylas.com/D4296
