get Visible Tile Coords
open override fun getVisibleTileCoords(latLonBounds: LatLonBounds, tileBounds: TileBounds, zoom: Double, wrap: Boolean): List<TileCoord>
Recieves LatLonBounds and zoom level
Return
List of tile coords. Ex: (TileCoord: 4/2/2, TileCoord: 4/3/2)