Updating Metrics Plot Readability

Changed plot to improve readability. Color now used to indicate
dataset. Algorithm name used to indicate algorithm.
Histogram Metrics vs. Algorithm for a Dataset

Initial commit of code that creates a histogram for every
algorithm/metric pair desired. This allows you get an idea of the
distribution across communities of a given metric in the results of an
algorithm.
Clustering Algorithms by Relative Omega Score

Takes the output of run_comparison.py and attempts to cluster
algorithms that produce similar results. Future work should improve the
way the output occurs (right now it’s just printed to the screen).