Add @api stable annotations for KML format
Add @api stable annotations for OSMXML format
Add @api stable annotations for Polyline format
Add @api stable annotations for TopoJSON format
Add @api stable annotations for WFS format
Add @api stable annotations for WKT format
Add @api stable annotations to olx.format.ReadOptions
Add @api stable annotations to olx.format.WriteOptions
Add @api stable annotations to feature format