Bug 14917: 700/710/711 fix path for icon in XSLT

Bug 14917: 700/710/711 fix path for icon in XSLT

Added theme and materialTypeLabel parameters back into showAuthor template call
for 7xx display in OPAC display.

Test Plan:
1) Apply this patch
2) Ensure you are using the default XSLT setting for the staff and opac record details
3) Find or create a record with MARC tags 700,710,711
5) Click title to review record details.
6) Link to icon following contributor names should appear.

Signed-off-by: Hector Castro <hector.hecaxmmx@gmail.com>
Works as expected. Magnifying glass icon corrected

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
Edit: I shortened the commit subject and put most of it in the commit message.