feature suggestion: extract centroids described with original variables

[tomazweiss]

trafficstars

When a recipe contains step_pca() or some other feature extraction method, extract_centroids() will describe centroids with these new variables. Users may also be interested to see cluster descriptions with original input variables.

[EmilHvitfeldt]

Hello @tomazweiss 👋

thank you for this feature request, it seems reasonable.

It feels like it would be an augment()-like operation. I need to think a little deeply to make sure it makes sense