Bug 21533: Do not allow password recovery for administrative locked patrons

Bug 21533: Do not allow password recovery for administrative locked patrons

Depends on bug 21336 for the ADMINISTRATIVE_LOCKOUT constant.

This is a bit lazy solution (but good enough): The account will not be found
when recovering the password. The user should contact the library. Since
the library chose to lock the account, that seems appropriate.

Test plan:
Select a borrower and set login_attempts to -1. Via mysql command line or
with Koha::Patrons->find(borrowernumber)->lock.
Enable password recovery.
Try to recover password from OPAC. You should fail with 'Not found, contact
the library'.

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Bouzid Fergani <bouzid.fergani@inlibro.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>