Bug 24108: Make export file names consistent

Bug 24108: Make export file names consistent

This patch renames the systempreference to be a bit clearer and uses
explicit options rather than a yes/no

Additionally it standardizes the export from the advanced cataloging editor
with that from the details page

To test:
 1 - Apply patches
 2 - Update database and restart all the things
 3 - Open a record in the advanced editor and save it as marc and xml
 4 - Note the file name is 'bib-{biblionumber.{format}'
 5 - Edit the syspref 'DefaultSaveRecordFileID' to be control number
 6 - Repeate 3-4 on a record with and without a control number
 7 - If control number present fiule name should be 'record-{controlnumber}.{format}'
 8 - Otherwise it should be as above
 9 - Repeat tests from the details page of a record
10 - Repeat tests from the opac details page of a record

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>