Constant bs58::alphabet::FLICKR

pub const FLICKR: &[u8; 58] = b"123456789abcdefghijkmnopqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ";

Flickr's alphabet for creating short urls from photo ids.

See https://www.flickr.com/groups/api/discuss/72157616713786392/