Display multiple copies and URIs per record in search results

Display multiple copies and URIs per record in search results

By building up a list of hashes in args.holding instead of a single
result, we can display multiple copies in search results.

Similarly, adding args.uri to misc_util.tt2 gives us the list of located
URIs to display in search results. Note that the XPath for holdings_xml
in in-db unapi will change slightly.

Signed-off-by: Dan Scott <dscott@laurentian.ca>
Signed-off-by: Dan Scott <dan@coffeecode.net>