Circle animation success

Just needed to specify size of view when adding to parent view
Cleanup, generalize
Fake preference data

Follows the graph paper sheet I uploaded
(https://asset1.basecamp.com/2228768/projects/4934441-dj-visualization/attachments/76651914/2ab32cb10ad5eb30100b0d8c60a2a85d0010/original/Preference%20Visualization%20Algorithm.jpg)
excluding A, which was an outlier.