FILESAVE: DOCX Preserve Font information for Para marker

Change-Id: Ic8cb9fec8a62f14e47899056beaededd791b590d
Reviewed-on: https://gerrit.libreoffice.org/7438
Tested-by: Adam CloudOn <rattles2013@gmail.com>
Reviewed-by: Adam CloudOn <rattles2013@gmail.com>