Bug 7350: In neworderempty.pl duplicating an item does not preserve select box selections

Bug 7350: In neworderempty.pl duplicating an item does not preserve select box selections

cloneNode() does not preserve select box selections, I have created a function to duplicate them : "clone_with_selected".
It is included in "cloneItemBlock", that's all.
Now the values selected in ddl are duplicated as the imput-texts are.

Signed-off-by: Paul Poulain <paul.poulain@biblibre.com>
(cherry picked from commit a47f59f72fdb8bd55731f4dc362d710234ddc1a8)

Signed-off-by: Chris Nighswonger <chris.nighswonger@gmail.com>