Bug 11715: require authentication for various staff scripts

Bug 11715: require authentication for various staff scripts

To test:

[1] Verify that item record creating and editing during the
    acquisitions process continues to work.
[2] Verify that calling  services/itemrecorddisplay.pl without
    a valid user session fails.
[3] Verify that authentication is required for making a new
    order from a suggestion, transferring an order, doing a
    Z39.50 search from acquisitions, displaying the record
    card view in the staff interface, and running the till
    reconciliation report (/cgi-bin/koha/reports/stats.screen.pl)

Signed-off-by: Galen Charlton <gmc@esilibrary.com>
Signed-off-by: Jonathan Druart <jonathan.druart@biblibre.com>
Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
Verified all changed scripts are not accessible witout a valid
user session, but are with one.

Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>
(cherry picked from commit effb64f7f2e48f5cf87e39699bd93c5448160da5)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>