Bug 27173: Add plugin hooks for authority record changes

Bug 27173: Add plugin hooks for authority record changes

2021-09-28 Updated version

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
(cherry picked from commit 47555e6469ae6bf84388019d63205221b7398a03)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>