Bug 25008: Overload Koha::RecordProcessor->options to update filters

Bug 25008: Overload Koha::RecordProcessor->options to update filters

This patch overloads the 'options' accessor generated by Class:Accessor.
It does so the passed options are used to refresh the loaded filters.

Tests are added for this overloaded method as well.

To test:
1. Apply this patches
2. Run:
   $ kshell
  k$ prove t/RecordProcessor.t
=> SUCCESS: Tests pass!
3. Sign off :-D

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>