This change adds import and export code for the the chart's data
table properties to the ODF format for chart documents. The data
table properties are exported to a new element "data-table", which
then references a auto style with all the properties of a data
table + new data table specific properties: HBorder, VBorder,
Outline, Keys which are mapped to "show-horizontal-border",
"show-vertical-border", "show-outline" and "show-keys" chart
attributes.
Also adds a test for the import and export:
imports xlsx -> exports to ods -> imports ods
Change-Id: Id45d9369fd619959e4d6eba7ca51c8ddce9c8f56
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/138260
Tested-by: Jenkins
Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>
203eaefb4a