Add droppable property

- Add accept property for div with id 'droppableTarget'
Change data

-Change JSON file
- Add elements from input data  with key destinationCountryID to data()
object
Fix bug, add new elements to data() object
Add handerElementsDrop
Fix bug
Add variable for fixed correct user response
Fix bug

<---- Look, i love smile ;)
Fix bug
Add new optional

-Fix moves
Button group show()/hide()
It's work