Cell Family :: getByName
Cell Family :: getElementNames
Cell Family :: getCount

Change-Id: I37d567ee284054f847c704d9fce370d174a0c48c
Reviewed-on: https://gerrit.libreoffice.org/25896Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>