Bug 21937: Add test to show autoBarcode annual increment bug

Bug 21937: Add test to show autoBarcode annual increment bug

This patch show the issue. If the DB contains a barcode (not auto attributed
by Koha) which begin with the year used to generate automatically a new one,
there may be a 'collision'.

prove -v t/db_dependent/Barcodes_ValueBuilder.t

Signed-off-by: Michal Denar <black23@gmail.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>

Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
(cherry picked from commit 7262bc066784247b12ce7f25c390498086e1d72b)
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>