Bug #2709 Cannot add from Search to New list

Bug #2709 Cannot add from Search to New list

While a new list was created, no subsequent call to add the biblio number was made,
thus a new empty list would be created every time.
Under the existing list add, the same code to add items would also apply to a new list,
so I refactored out the logic to add items and made a new subroutine.

Signed-off-by: Galen Charlton <galen.charlton@liblime.com>