sw: _SaveTable::CreateNew() fix invalid cast ...
sw: _SaveTable::CreateNew() fix invalid cast ...

... of SwTableFormat to SwTableBoxFormat for the temporary SwTableBox.

Change-Id: I74118b1b028bd71561f9afe6acd1cc95991a3761

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core