Add Yellowbrick to ClickBench

William from Yellowbrick told me today that it does not prevent benchmarks and allows self-service sign-up, so it can be in ClickBench. Let's add it.

Start by inspecting the repository's existing ClickBench entries for analytical databases and how benchmark targets are registered. Add Yellowbrick consistently with those entries, then run the relevant benchmark or validation command found there and confirm Yellowbrick appears as a working ClickBench target.

Vom Indexierungsmodell aus dem Issue-Text verfasst.