Table Header Views in StoryBoards
Solution 1:
It looks like one simply drags a control to the top of the table view. I didn't expect it to be that easy.
Before Drop
After Drop
Solution 2:
You can do this easily by dragging your UIView/UIImageView just below the UITableView in the document outline (instead of the layout).
If you try to drag in the layout instead of document outline the UITableViewCell will jump to the top handling which is frustrating!