SwFmtNoBalancedColumns: add doxygen comment
SwFmtNoBalancedColumns: add doxygen comment

Change-Id: Ifc538d8a51a333e79cec0312ab8cf4541abba7af

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