Easy wrapper for a bot that takes some configuration (including the connection options, such as the network and channel to join) and a list of plugins, and runs the (re)connection loop with the list of plugins.

• parameter cmd_help

  if true, will add a "help" command with the Config.t prefix field. Default is true.

Main should look like this:

  let main () =
    let module C = Calculon in
    let config = C.Config.parse C.Config.default Sys.argv in
    C.Run_main.main config plugins |> Lwt_main.run