(cherry picked from commit 1af4dbd8)
(cherry picked from commit e2bb242e)

sw: extend some more OOXML export test to check embedded objects

(cherry picked from commit 988f1c71)
(cherry picked from commit b676e97d)

Change-Id: Ie1047a2a213632f05b0ae091a3a7e4118a271082
Reviewed-on: https://gerrit.libreoffice.org/20760Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>
Tested-by: Miklos Vajna <vmiklos@collabora.co.uk>