dist.ini tweaks
Add IRC::Mode::Single + IRC::Mode::Set and tests for same

Still need POD for Mode::Set

	new file:   lib/IRC/Mode/Set.pm
	new file:   lib/IRC/Mode/Single.pm
	renamed:    t/load.t -> t/00_load.t
	renamed:    t/obj/message.t -> t/01_message_obj.t
	renamed:    t/util/case.t -> t/02_util/case.t
	renamed:    t/util/colors.t -> t/02_util/colors.t
	renamed:    t/util/ctcp.t -> t/02_util/ctcp.t
	renamed:    t/util/mask.t -> t/02_util/mask.t
	renamed:    t/util/modes.t -> t/02_util/modes.t
	renamed:    t/util/parser.t -> t/02_util/parser.t
	new file:   t/03_irc_mode.t
	new file:   t/04_irc_modechange.t
Mode::Set POD

	modified:   dist.ini
	modified:   lib/IRC/Mode/Set.pm
Merge branch 'modes'

* modes:
  Mode::Set POD
  Add IRC::Mode::Single + IRC::Mode::Set and tests for same