Creates a ChoiceBoxListCell instance with the given items being used to populate the ChoiceBox when it is shown, and the StringConverter being used to convert the item in to a user-readable form.

Parameters:

converter		A StringConverter that can convert an item of type T into a user-readable string so that it may then be shown in the ChoiceBox popup menu.
items		The items to show in the ChoiceBox popup menu when selected by the user.