Add config option for hiding/filtering stats table

Fix #730. 

Putting this in but definitely looking for feedback on the approach.

Signed-off-by: Don Naegely <naegelyd@gmail.com>
This would be better suited as an option to the `CountCollection` class. The `statsModelsList` (better named `modelCountList`?) is more of a convenience for passing it as an option to the rendered on the workspace.