Integrate `so you want to "group by"?` wizard

[nik9000]

@markharwood's built a lovely wizard for guiding folks through how to pick a "group by" solution. We really should integrate it. The question is, how? And, are "wizards" a sort of generic thing we can just universally support? We have quite a bit of power now that we've converted to Asciidoctor, so maybe!

[markharwood]

@dadoonet had the wonderful idea of integrating this into Console - that way rather than asking questions like "how many unique grouping values do you have?" we can check live data and help make decisions for them. Even things like estimating overall running times.

[nik9000]

@dadoonet had the wonderful idea of integrating this into Console - that way rather than asking questions like "how many unique grouping values do you have?" we can check live data and help make decisions for them. Even things like estimating overall running times.

That is a good idea!