Allow drag and drop from code text selection to Function Point Explorer


Instead of requiring an adornment on the page to drag a code implementation item (selection) to, allow that to be dragged right to a point on the function point explorer. If the target type is a Function Point Work Item, then just create the link, if it's another item, create a function point / design point work item followed by the code implementation item.
This will eventually allow us to track dark matter situations (unexpected work, design discourse, etc.) and have a better understanding of practices in the future.