Circle Packing

list of modifications:

• Polymorphism Gson Deserializer
• Hierarchical Json Streaming Reader
• Circle Packing Layout Indexer
• More capable predicates
• Minimap Overview
• Closes #97

this is a demo using the word frequency data set: This is the first pull request of hierarchical templates, and it was derived from a very old code base, many files have been changed. Thank you for any comments, criticism and discussion!

Thanks Xinli.

A quick question: does this include treemap? Also, can you include in the PR body a GIF of the template so that everyone knows what it looks like? I find this website to be useful to upload gifs generate external links: https://giphy.com/

In any case, we need to find some time to sit down and have all these three templates merged (pie, treemap, circle packing, anything else?)

feature request: add option to opt out breadcrumb

Can you also check that your Java line endings are correct. It seems like some of them are using CRLF