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.
`util.inherits` adds a method `base` to the child class.  `base` takes `this` (it has to be `this` otherwise it doesn't really make any sense, it's a little janky), `methodName`, and arguments, and calls methodName, in the context of this, on the super prototype. Really only slightly more convenient than just applying it yourself like, 

```javascript
DAB.Graph.prototype.constructor.apply(this, options);
```
Come to think of it
```js
DAB.Graph.apply(this, options);
```
would probably work too.

But any way you do it, it's just calling https://github.com/jswest/damnatio/blob/master/public/js/lib/graph.js#L23.