Add a Venn diagram renderer

Problem/Motivation

Venn diagrams are quite common. Even if we have the Up-Set renderer for large number of sets, Venn diagram are more easy to interpret for very small number of sets. Such a renderer should be therefore limited to 4 or 5 sets at most, while it should be recommended for only 2 to 3 sets.

The idea would be to display overlapping circles with either the number of common items on overlaps or a corresponding number of smaller circles inside (see picture below). It could be chosen by parameter and for small circles, the amount represented by a circle could be set as well.
Maybe, clicking on an area could popup the list of common elements?

Sources

https://github.com/christophe-g/d3-venn/tree/master

However, for more than 3 sets, it becomes quickly hard to read. Here is a very famous banana Venn diagram example that led up to the up-set plot representation:

Data template

It should follow the same structure as the up-set plot renderer.