Tika Similarity D3js visualization

Add some new D3.js visualizations to Tika Similarity
a. Currently Tika Similarity only supports Dendrogram, Circle Packing, and combinations of those to view clusters, and relative similarities between
b. Consider adding
i. Feature related visualizations, e.g., time series, bar charts, plots
ii. Add functionality in a generic way that is not specific to your
iii. See gallery here: https://github.com/d3/d3/wiki/Gallery