Bug 33894: Restructuring: Use BLOCKs for biblio and authority sections

Bug 33894: Restructuring: Use BLOCKs for biblio and authority sections

In order to make the conversion to the tab wrapper markup easier I'm
putting the biblio search history and authority search history sections
into blocks. This will make it easier to include or not include the
sections using template logic.

To test, apply the patch and, if necessary, perform some searches for
bibliographic and authority records. The OPAC search history page should
be unchanged, with the correct information showing under each tab and in
each section for current and previous searches.

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>