Split panel visualization picker

I needed to create a data visualization picker that also allowed for explanations of those chart types. I saw @Claudio Guglieri's Mixpanel shot and found it to be a very interesting solution and thought I'd try my hand at a similar component using mostly already designed components from our library. It also meant coming up with icons for each of our different chart types.

What's especially nice is that by encapsulating it in it's own panel, it can be used anywhere in the UI either in an empty page or in a popover.