D3 graph of calibrationValues.csv (x-errors only for now)

[johnboiles]

Generates a D3.js graph of calibrationValues.csv that looks like this:

The colors make it easy to track the way the different rows have errors across the board.

I'm hoping to use something like this to easily generate graphs from the simulator so that I can better understand how simulated errors affect calibration across the work area.

We can also easily overlay curve fit curves as well. It's all JavaScript so it could even be interactive if we get fancy.

We don't necessarily need to merge this in, but wanted to share in case it's useful.