Function mem6_server::send_to_other_players

fn send_to_other_players(
    users: &Arc<Mutex<HashMap<usize, UnboundedSender<Message>>>>, 
    ws_uid_of_message: usize, 
    new_msg: &str, 
    players_ws_uid: &str
)

New message from this user send to all other players except sender.