Added a build dependency on an IRC client library.
Added a build dependency on an IRC client library.

See: https://github.com/johnelse/ocaml-irc-client

conreality/consensus,conreality/conreality,conreality/consensus,conreality/consensus,conreality/conreality,conreality/conreality,conreality/conreality,conreality/consensus,conreality/conreality