The WW8 import has code for this in SwWW8ImplReader::AppendTextNode(),
with lots of corner-cases. Not all of that is implemented here yet, but
the bullet list in the bugdoc already looks correct now.

Change-Id: I9499bfa4d8d7fcc425d7b95e64987258c099f7f2
Reviewed-on: https://gerrit.libreoffice.org/29989Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>
Tested-by: Jenkins <ci@libreoffice.org>