This patch merge the previous patch attempt with the existing OPACAuthorIdentifiers syspref.
It creates a new syspref OPACAuthorIdentifiersAndInformation and remove
OPACAuthorIdentifiers.
"identifiers" become an entry of the new syspref.
Test plan:
Select some entries in OPACAuthorIdentifiersAndInformation
Edit an authority record and enter data in the corresponding subfield
(the list is on the syspref entry)
Go to the biblio detail page or the authority detail page at the OPAC
and notice that the info you selected are correctly displayed.
Sponsored-by: Orex Digital Signed-off-by: Signed-off-by: Hugo Agud <hagud@orex.es> Signed-off-by: David Nind <david@davidnind.com> Signed-off-by: Nick Clemens <nick@bywatersolutions.com> Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>