Added tabbed and two groupedbars mode of notebookbar.

Change-Id: I208a365139ca6c83510a73a8ffa0260b05787793
Reviewed-on: https://gerrit.libreoffice.org/54547Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Szymon Kłos <szymon.klos@collabora.com>