DOCX import sends 'table row redline' to SW core, and core stores it

This patch adds support in the DOCX importer for the 'table row redline'
to be sent from the DOCX importer, using UNO (as a property of the
table row) to the SW core. Once it reaches the 'table row' - the
'set property' detects this property - and creates an
'SwTableRowRedline' object for it, and adds it to the 'SwExtraRedlineTbl'
object.

Change-Id: Ifd9ba680a722b54116b07dca54841dcba599c517
Reviewed-on: https://gerrit.libreoffice.org/7822
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>
Tested-by: Miklos Vajna <vmiklos@collabora.co.uk>