Bug 14002: Show patron expiry date in OPAC

Bug 14002: Show patron expiry date in OPAC

This patch makes it possible to show the expiration date
of a patron account in the OPAC on the details tab in the
patron account.

Extras:
- Makes it possible to hide cardnumber with
  PatronSelfRegistrationBorrowerUnwantedField

To test:
- Toggle OPACPatronDetails and test date expiry always shows
- Check PatronSelfRegistrationBorrowerUnwantedField for dateexpiry
  and cardnumber
- Verify a patron address modification request still works
  as expected

Signed-off-by: Aleisha <aleishaamohia@hotmail.com>
Signed-off-by: Jonathan Druart <jonathan.druart@koha-community.org>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@unc.edu.ar>
(cherry picked from commit 69baa022a587ffd9df2bc065a0e8e72c14cf7c4f)
Signed-off-by: Chris Cormack <chrisc@catalyst.net.nz>