Improve the interface for table rendering for `labs` CLI

[nfx]

Downstream processes must render this themselves. This is too much coupling and leaks out the helpers that we define in cmdio and effectively turns them into a public API. This will break at some point in time.

If you want to do this anyway, you can include a rendered in this package that exports the minimal set of helpers (or none at all) and have a clearly defined contract.

Originally posted by @pietern in #914 (comment)

Possible outcomes:

• evaluate the findings from https://github.com/databrickslabs/remorph/blob/main/src/databricks/labs/remorph/cli.py, https://github.com/databrickslabs/ucx/blob/main/labs.yml#L14-L19, https://github.com/databrickslabs/sandbox/blob/main/labs.yml
• evaluate the potential outcomes: improved interface in the upstream CLI or introduce the new dependency libs for all labs in different languages

[github-actions]

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