This pull request will print all the used tools and their failure rates.
The objective goal should be to minimize that failure rate.

@tmickleydoyle: this also changes the telemetry event to report
`tool_metrics` as opposed to `tool_use_counts`. Ideally I'd love to be
able to plot failure rates by tool and hopefully see that percentage go
down. Can we do that with the data we're tracking with this pull
request?

Release Notes:

- N/A