Partially translate german comments in sw/source/filter/ww8/

Please, only apply this patch if you are a native speaking German.
I'm not a native speaker, so a double check is really necessary and appreciated.

Thanks in advance!

Change-Id: I9493d128e124d319391aa851ae364aefeb27c512
Reviewed-on: https://gerrit.libreoffice.org/3788Reviewed-by: Norbert Thiebaud <nthiebaud@gmail.com>
Tested-by: Norbert Thiebaud <nthiebaud@gmail.com>