'Adds new TileRenderer into the Plot.renderers
Args:
tile_source (TileSource) : a tile source instance which contain tileset configuration
Keyword Arguments:
Additional keyword arguments are passed on as-is to the tile renderer
Returns:
TileRenderer : TileRenderer'

def add_tile(self, tile_source, **kw):

    tile_renderer = TileRenderer(tile_source=tile_source, **kw)
    self.renderers.append(tile_renderer)
    return tile_renderer
