Display Count When Proxy Section is Collapsed

Purpose: To display a count of proxy relationships on the Proxy section when the section is collapsed. This is a visual indicator to users that there is data in a closed section. John Coburn has already put support for this in the accordian component.

Scenarios:

1. Scenario
   • Given there are X _active _sponsor relationships and Y _active _proxy relationships for User A
   • When the Proxy section of User A's user details is collapsed
   • Then a count should display on the closed Proxy section: X + Y

See example of how counts should look in this wireframe: https://www.dropbox.com/s/vhfz9eywef2z875/user-proxy-1.6.png?dl=0