Make a mutation score heatmap GUI

[Tom Goddard]

None of the current mutation score tools (scatter plot, histogram, color structures) give a view of all the different scores. Would be nice to have an interactive heatmap showing all the mutation scores that interacts with associated structures.

[Tom Goddard]

A basic heatmap mutation score GUI is available using command "mutationscores heatmap". There are still many features and command options to be added. Once it is more functional I plan to make opening a mutation score .csv file bring up an initial tool panel with buttons for heatmap, scatter-plot, histogram, structure coloring, and a list of currently open mutation sets.

[Tom Goddard]

I added an Options button to the heatmap gui with options to choose the colormap and to show unnormalized mutation scores.

[Tom Goddard]

Added options panel controls to choose mutation set, specify score names to include, highlight mutations with structure residues (formerly was in context menu), subtract fit. Three different colormaps are used for normalized, unnormalized, and unnormalized fit subtracted scores.