Bug 38130: Add the ability to filter item by library name

Bug 38130: Add the ability to filter item by library name

On the item list of the bibliographic record page you actually can filter
items by library, either using the dropdown list on top of the column
or using the library_id (branchcode) in the global search.

But you cannot search using the library's name in the global search.

This patch add yet other embeds to allow this.

I am not sure this is needed, we won't be able to do the same for item
type and AV, so maybe it is not worth 2 additional JOINS.

Maybe we should tell people you should use the column filters when a
dropdown list is there, instead of: "it works, sometimes".

Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>
Signed-off-by: Brendan Lawlor <blawlor@clamsnet.org>
Signed-off-by: Pedro Amorim <pedro.amorim@ptfs-europe.com>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>