Bug 21921: Add date publication year to biblio Z39.50 search form in acquisition

Bug 21921: Add date publication year to biblio Z39.50 search form in acquisition

Test plan:

1) Apply the patch
2) Have a Z39.50 endpoint with attr 31 defined - Library of Congress
supports this
3) Try to find some biblio records through Z39.50 using the new field
"Publication year" in acquisition module

Signed-off-by: Michal Denar <black23@gmail.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>