This is only the filter part, UI is still missing

Change-Id: Ic2ee0196c6b501abb244397cb14bb70626b45ae8
Reviewed-on: https://gerrit.libreoffice.org/30772Reviewed-by: Samuel Mehrbrodt <Samuel.Mehrbrodt@cib.de>
Tested-by: Samuel Mehrbrodt <Samuel.Mehrbrodt@cib.de>