With this option we can set where the summary rows should appear,
above or below the datas when we create a new Subtotal area. The default
option is "True" (which means the summary rows are below the datas)
when we create a new subtotal area. Unless if we already have one subtotal
area on the same sheet, in that case the sheet level property, "TotalsRowBelow"
contains where should the summary rows be for the new Subtotal's.
TODO: add new ODF xml attribute for Summary below
Change-Id: Icf86c85041d75c24919cb528846d5bb2b517ca78
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/175556
Tested-by: Jenkins
Reviewed-by: Balazs Varga <balazs.varga.extern@allotropia.de>
26c08356d1