Plot individual silhouette scores

Usage

plot_silhouettes(list_of_fits, penalization, final_config = 1L)

list_of_fits: A list of scregclust objects each fit to the same dataset across a variety of module counts (varying n_modules when running scregclust).
penalization: Either a single numeric value requesting the results for the same penalty parameter across all fits in list_of_fits, or one for each individual fit.
final_config: The final configuration that should be visualized. Either a single number to be used for all fits in list_of_fits, or one for each individual fit.

A ggplot2 plot showing the the silhouette scores for each supplied fit.