OEWriteOldStyleGrid

bool OEWriteOldStyleGrid(OEPlatform::oeostream& ostr,
                         const OEFixedGrid<float>& grid)
bool OEWriteOldStyleGrid(OEPlatform::oeostream& ostr,
                         const OEFixedMultiGrid<float>& grid,
                         unsigned int cur_grid = 0)