LP#1642000 - Add CN Prefix, Suffix and Parts to opac checked out item display

LP#1642000 - Add CN Prefix, Suffix and Parts to opac checked out item display

Add Call Number Prefix, Call Number Suffix and Part to the call number column of
checked out items display.  Also sort based on the label_sortkey value of those fields.

Testing Notes:

Check out an asortment of copies to your patron account.  Pick a mix of items with
Call number prefix and suffix, and some with parts.

View the list of checked out items in the myopac interface.

Notices that no call number suffix or prefix are showing, and no parts info is showing.

Apply the patch and see that the extra info is showing.  Also try sorting on call number column.

Signed-off-by: Josh Stompro <stompro@stompro.org>