SWIG bindings: map OGR_L_GetStyleTable(), OGR_L_SetStyleTable(), OGR_DS_GetStyleTable(), OGR_DS_SetStyleTable()

git-svn-id: https://svn.osgeo.org/gdal/trunk/gdal@26970 f0d54148-0727-0410-94bb-9a71ac55c965