Bug 13552: Add debar option to batch patron modification

Bug 13552: Add debar option to batch patron modification

Test plan:
1. Go to Tools > Batch patron modification

2. Input the cardnumbers of several (undebarred/unrestricted) patrons and submit

3. Notice there is no input for setting a debarred until (restriction
expiration) date or debar comment

Also notice in the list of matching borrowers at the top of the page
there is no display of the debarred or debarredcomment values for the
patron

4. Apply patch

5. Restart memcached and plack

6. Refresh the page notice 'Debarred till' (a date picker input) and
'Debarred comment' are now input options

Also notice in the table at the top of the page  'Debarred till' and
'Debarred comment' are shown on the far right of the table (you may need
to scroll to see this)

7. Pick a date in the 'Debarred till' datepicker and write in text into
the 'Debarred comment' field and submit

8. Notice in the next loaded page the selected patrons have the
'Debarred till' and 'Debarred comment' values you entered

9. Click on the cardnumber link of one of the patrons and notice the red
text on their patron account page informing you they are restricted
until the date you set

10. In the Koha home directory enter Koha shell:
sudo koha-shell <instancename>

11. Run: prove xt

12. Confirm all tests pass

13. Sign off

Sponsored-By: Brimbank Library, Australia
Signed-off-by: Josef Moravec <josef.moravec@gmail.com>
Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>