(bug #1578) Add the (quasi)full COinS(Zotero) support
this patch do a lot of things :
* Add the function GetCOinSBiblio in C4::Biblio, return the COinS value that must be put in a span title
This will be usefull for OpenURL support.
* Replace the span in opac-detail, and put the var get from GetCOinSBiblio
* Fix an <img> tag that wasn't autoclosed
* Add the COinS in search result
* Full COinS support of UNIMARC, the MARC21 support should be improved to provide all kind of document types
Signed-off-by: Galen Charlton <galen.charlton@liblime.com>