Add "Link With Editor" toggle to tree view

[dgileadi]

Standard views like Package Explorer have a "Link With Editor" toggle (a button with two yellow arrows facing opposite directions) that automatically expands the tree to the file that is frontmost in the editor. This would be extremely helpful to have in the Coverage Session View (tree view), since for me the hardest thing to use in the plugin is to find the coverage details for the file I'm working on.

Thanks for a great plugin!

[jmhofer]

That's a good idea, thanks!