Evidence View - Add filter feature to legend

[KeywanHP]

Implement same behavior as in Gene View which allows users to click on concept type icons in the legend to filter the table.

[AjitPS]

could use a similar approach to https://github.com/Rothamsted/knetminer/blob/master/common/client-base/src/main/webapp/html/GeneView/summariseLegend.js

[AjitPS]

partially implemented (in my fork); can click on a evidence icon in legend to hide all other evidences (and just show clicked evidence type) in visible table; can also revert all changes to reset.

[AjitPS]

Now: @KeywanHP

1. Interactive Evidence View legend hides all non-matching evidence rows from table when an evidence icon in top legend is clicked, showing just the clicked evidence type entries.
2. If 1st click hid an evidence type, clicking that in the legend brings it back and hides the rest.

original Evidence View for a search:

1st click (show BioProc):

2nd filter click (show Trait, hide others):

Note: potential future enhancement: If users show just evidencetype1 with 1st click and then click another evidencetype2, it is displayed alongside the 1st to incrementally show evidence1 OR evidence2. Needs to log user's 1st interaction and post that, make the filtering additive not reductive. <Needs further work>.