Add Aster Chart for the player history page

[jschlot]

The chart will show a player their "moral compass".
http://codepen.io/Holisticnature/pen/YwddOG

In the chart, the middle number is their overall score.
Each wedge is an alignment.
Each wedge width is based on count of choice in that alignment.
Each wedge radius length * width is the final overall score.