Add an Active/Deactivated flag to Classification Sets page

Currently the list of classifications on the the Classification Set page (in the new Classification sets interface) does not have an option to show if a classification is active or not. The old interface did. 

Including that flag is useful to easily see which classifications, in a potentially long list, are currently active. To see that in the new interface requires two clicks to see the status and a third click to get back to the list.

If one is working on a number of conversions you might want to see which you have not made live. Currently you have to click into each item in the list and keep a separate note (or have a really good memory) to keep track.