Adds a first pass at the faux-stacked-bar.js file, which would create a ...

...stacked bar graph were every data point is represented by a rect, creating the illusion of a true stacked bar graph.

This is not actually a real pull request, I just wanted a place where we could comment on things.
Also think the names could be clearer here. date -> year, indices -> segmentsByYear(?) (Maybe I don't understand what you're doing here.)