Bug 15198: Make OpacSuppression work even if there are no records suppressed

Bug 15198: Make OpacSuppression work even if there are no records suppressed

This patch adds the Zebra special attribute 14 to ccl.properties and
opac-search.pl, so that we can turn on OpacSuppression and still return
results even if there are no records in Zebra for the Suppress index.

_TEST PLAN_

Before applying:

1) Make sure that you have no suppressed records indexed in Zebra
2) Turn on OpacSuppression system preference

3) Search using a keyword which should bring up records
4) Note that no records are returned in the results
5) Change UseQueryParser system preference to "Try"
6) Repeat steps 3-4

Apply the patch.

After applying:

7) Repeat step 3 (ie search using a keyword which should bring up records)
8) Confirm that records are appearing in the results!
9) Change UseQueryParser system preference to "Do not try"
10) Repeat step 3
11) Confirm that records are appearing in the results!

Signed-off-by: Hector Castro <hector.hecaxmmx@gmail.com>
Works as advertised. No more, won't need to have at least one record with the
value "1" in the field mapped with this index. All records in OPAC returned.

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>