Reciprocal ranking of models

[jmcmurry]

So, blue meanie mouse is the top hit for HADZISELIMOVIC syndrome, however the reciprocal search shows 11 other diseases for which blue meanie is better suited. I'd like to show the ‘reciprocal rank’ so that when showing results for blue meanie, you get a sense of what it is uniquely suited to do: Eg. it is the best available model for HADZISELIMOVIC and Atrioventricular Septal Defect, but the 6th ranked model for Aortic Arch Anomaly With Peculiar Facies and Mental Retardation. Implications downstream for column sorting in phenogrid. https://github.com/monarch-initiative/phenogrid/issues/62