Bug 11131: display authority summary correctly when searching by all authority types

Bug 11131: display authority summary correctly when searching by all authority types

The summary is built using the authtypecode selected from the interface.
So when a search is launch on all auth types, the summary is not
correctly built by the BuildSummary routine.

It should get the authtypecode from the authority (call to
GetAuthTypeCode).

To test:
1/ go to authorities/authorities-home.pl
2/ search <something> by authtype personal name
3/ results are displayed with summary
4/ now select the default entry and search again the
results display but without the summary
5/ apply the patch
6/ search default again, now summary shows

Signed-off-by: Chris Cormack <chris@bigballofwax.co.nz>
Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
Tested with a UNIMARC database, works as described.
All tests and QA script pass.

Signed-off-by: Galen Charlton <gmc@esilibrary.com>