Update ari_scores

[nicaurvi]

• Move into a module called similarity at topologic.similarity
• Add support for Jaccard similarity
• Remove calculate_ari_scores function (no more enriched graphs)

[daxpryce]

After some more thought it doesn't make sense to use Jaccard at all; it's superficially a good choice to add but it doesn't inherently take into consideration label names changing, which is pretty much a guaranteed. I'm not sure jaccard would make sense for any of the comparisons we're trying to do re: cluster or partition membership as a result of our embedding clustering algorithms or our global partitioning algorithms.