Add names suggestions for Product Intelligence metrics [RUN ALL RSPEC] [RUN AS-IF-FOSS]

What does this MR do?

It add names suggestion generator MVC and includes it in Product Intelligence metric definitions generator

Resolves #323170 (closed) and partially resolves #323193 (closed)

Does this MR meet the acceptance criteria?

Conformity

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  • I have not included a changelog entry because this change is behind a feature flag, it is also tooling change.
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