Add details callout to `PopupView` charts

[CalebRas]

Isssue

Similar to ArcGIS Online, the PopupView charts should show some sort of "callout" view that displays the details of a given chart slice, bar, etc. when it is tapped on/hovered over. See related #1278 (comment).

Example

Popup ExampleQt: https://www.arcgis.com/home/item.html?id=66c1d496ae354fd79e174f8e3074c3f9