Add box plot as a visualization option

[#1]

Box plots are an ideal way to visualize distribution of a population.

It could be used to visualize metrics like:

• visits per visitor
• order value distribution
• journey completions per visitor

It would be especially powerful if we could click into specific areas of the box plot (including outliers), and identify/further analyze those data points.

[#2]

I am often looking for a way to visualize a full population to my audience, especially in situations when the average and mean don't tell the full story.  Would love this  

[#3]

I would love to have this available to vizualize confidence intervals for ab tests.