Bug 12718 - Show extended patron attributes in the OPAC

Bug 12718 - Show extended patron attributes in the OPAC

At some point the patron details page in the OPAC lost the display of
patron attributes. This patch returns the attributes to the update page.

To test, log in to the OPAC as a patron who has data in one or more
extended patron attributes. View the "your personal details" page
(opac-memberentry.pl):

- Confirm that the information displays correctly.
- Test with OPACPatronDetails both on and off.
- Test with patron who has no data in extended patron attributes.

Signed-off-by: Chris Cormack <chrisc@catalyst.net.nz>
Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
Attributes only display when 'display in OPAC' is configured.
Attribute shows correct description, when authorised value is used.
Works as expected, updating is currently not yet possible.

Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>