Design a way for users to easily include/exclude specific datasets in their collection

[robyngit]

Last year, we made a mockup for the EditCollectionView that showed a way for users to add datasets to their collection one by one (see below). In the recent ACD training, users expressed a need for this type of feature when building a collection. I think we need a special interface for both including and excluding particular datasets. We need new mockups that show how we can incorporate this into the new Query Builder.