Bug 18354 Adding item type attribute to cover image div

This adds item type so we can do things with javascript.

To Test:

1.) Do a search on OPAC
2.) Inspect element to confirm item type is not present
3.) Apply patch
4.) Do a search on OPAC to confirm item type is present as a class

Signed-off-by: Owen Leonard <oleonard@myacpl.org>

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>

koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-results.tt

@@ -222,7 +222,7 @@
 
                                             [% # Cell 4: Search result details and controls %]
                                             <td class="bibliocol">
-                                                <div class="coverimages">
+                                                <div class="coverimages [% SEARCH_RESULT.itemtype %] ">
                                                     <a class="p1" href="/cgi-bin/koha/opac-detail.pl?biblionumber=[% SEARCH_RESULT.biblionumber %]">
                                                         [% IF ( OPACLocalCoverImages ) %]
                                                             <span title="[% SEARCH_RESULT.biblionumber |url %]" class="[% SEARCH_RESULT.biblionumber %]" id="local-thumbnail[% loop.count %]"></span>