Include a Base layer for Settings and Commerce fieldsets

[bordoni]

🗒️ Description

Include Telemetry data about how we are using Event Tickets to improve deprecation of old code and guide proper feature development.

It for sure doesn't include all the data points we want but it creates a small setup start pushing that data.

This separates the value of each one of our data-points in a way that we can add tests, which I haven't gotten to I ran out of time this Friday, only had about 1h to actually do code today.

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Once we include the change to the Sniffer we should avoid problems with @inheritDoc https://github.com/stellarwp/coding-standards/pull/22

🎥 Artifacts

https://i.bordoni.me/tNrzrWXQ

✔️ Checklist

• [x] I've included a changelog entry in the readme.txt file.
• [x] My code is tested.