ENH: List how many of the tips under a node match the search query

[corneliusroemer]

I'm trying to look for the branch that has the largest number of matches for a search query.

This is quite hard right now when there is lots of homoplasy.

It would be great if I could see very quickly what number of sequences match a search query - displayed in the same way you display the number of sequences under a node in general (independent of search).