Interactive factoextra plots

[hannehuygelier]

Dear Alboukadel Kassambara,

Thanks for your awesome package to visualize results of cluster analysis!

I have 1 suggestion for enhancement for the fviz_dend method.

At the moment you can only label the records and color them by cluster. It would be nice if one could change the shape and other aspects of the leafs in de dendritic tree according to other factors. For instance, coloring by cluster and shape by a second feature.

Kind regards, Hanne