Create a browse by disease view

[malachig]

It would be great to have a browse view that was disease centric.

Proposed columns (some of which may require new endpoints from the server side @acoffman) :

• Disease X
• Disease synonyms?
• Genes with evidence items that specify Disease X (count or list?)
• Variants with evidence items that specify Disease X (count)
• Evidence items that specify Disease X

[arpaddanos]

This can be either a V.I or V.II issue. As it would be nice to put serious thought into this, it may be best considered more in depth and placed in V.II queue.