Postprocessor package module. Only enumerates the postprocessors into an std.meta.AliasSeq for easy foreaching.
The Twitch postprocessor processes dialect.defs.IRCEvents after they are parsed, and deals with Twitch-specifics. Those include extracting the colour someone's name should be printed in, their alias/"display name" (generally their nickname cased), converting the event to some event types unique to Twitch, etc.
A list of all postprocessor modules, by string name so they can be resolved even in singleFile mode. These will be instantiated in the order listed.