Proposal / design sketch for providing easy-to-consume classic datasets

This [recent discussion](https://github.com/fslaborg/FSharp.Stats/discussions/276#discussioncomment-6393279) got me thinking about how a collection of easy-to-use from F# datasets could look like.

My thinking / design direction:
- Make it very easy for someone to get standard datasets in F#,
- Make it easy for someone to add a dataset, following some patterns.

I took a stab at it [here](https://github.com/mathias-brandewinder/TypedDatasets/blob/main/src/illustration.fsx). This is a sketch, but hopefully conveys where I would tend to go.

I'd be interested in hearing thoughts on the approach, and assuming there is interest, what changes / adjustments would be needed to get that into this repository instead of mine :) // @kMutagene

One thing I did not do is expose datasets as data frames. I have mixed feelings on the question:
- On one side, this is a very common expectation / question from newcomers to data science with F#,
- On the other side, I think that exposing data as sequences of records is super easy, the part newcomers usually struggle with is parsing and designing records.