Find Boxed Item Support

Box Controller has new method findItemSKU to return the boxes that
contain the Item SKU.
Removed the old Item/List view and Controller code.  No longer needed as
Box/List performs the function better.
Destroy Items in API and Find Items in Client

Delphi Client now lets you search for an Item SKU across all boxes.
Returns box locations and the item count inside them.
Item Controller in the API has a destroy override.  Provide an Item SKU
and Box SKU and the item will be removed from the box.
Added Client support for deleting items from box

New Client Form to let user select an item SKU and Box SKU to have the
item removed from the box.
Added Client support for deleting items from box

Part 2.