Make badges aware of the SMTK selection when clicked.

When users click on a badge, previously the response only considered the corresponding phrase, even if multiple phrases were selected. Going forward, the qtDescriptivePhraseDelegate passes a qtBadgeActionSelectionToggle that allows badges to apply themselves to all selected objects.

This means that changing the visibility or color by clicking on badges will now change the visibility or color for all selected items, not just the one whose badge was clicked.

See the release note for more information.