Created a new field type called Figure

Change-Id: Ic7f3d3b878d03f4d6a98727db489e48158f946a1
Reviewed-on: https://gerrit.libreoffice.org/52178Reviewed-by: Samuel Mehrbrodt <Samuel.Mehrbrodt@cib.de>
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>