[HorizontalListView] Add DroppableHeader/Footer for handle drop to delete action

[Seuleuzeuh]

Is your feature request related to a problem? Please describe.
In some items management case, with the reorder on drag and drop functionnality, the must have is the drop to delete items.

Describe the solution you'd like
Add a DroppableHeaderTemplate do give the ability to create a personalize content, and an HeaderDropEndCommand raised when a draggable item is dropped to it (with the corresponding item in CommandParameter).
The header is show only when the IsDragAndDropping change to true, and hide when false (with smooth animation 🥰).

Describe alternatives you've considered
Doesn't found a way to do it with the actual component

Additional context
Must have for add the functionnality to delete an item in a reordable draggable list.