125000: <WinSalBitmap::ImplCreateGdiPlusBitmap()> - check last status of newly created <Gdiplus::Bitmap> instance before using it.
124999: - call <SwGrfNode::onGraphicChanged()> only when <Graphic> instance has been set, too

- <SwGrfNode::onGraphicChanged()> - assure that graphic is swapped out in case its swap in has been triggered by this method.
124999: As Writer graphics are no longer painted via the graphic manager - see <SwNoTxtFrm::PaintPicture(..)> - it is needed to swap out the Writer graphics automatically after a certain amount of time. --> 5000ms