adding tile proto code
adding tile proto code

kekscom/osmbuildings,faegi/osmbuildings,hgarnelo/osmbuildings,OSMBuildings/OSMBuildingsClassic,faegi/osmbuildings,hgarnelo/osmbuildings,faegi/osmbuildings,OSMBuildings/OSMBuildingsClassic,kekscom/osmbuildings,hgarnelo/osmbuildings