Currently, to_chat is literally just a proc that does user << message.
But it'll let us do output modification in the future, especially for
something like Goon's HTML chat.
Big thanks to PJB for his to_chat script, see
https://github.com/d3athrow/vgstation13/pull/6625 for more details.
Thanks, Redbook.
Basically, this used to spawn a shitload of instances and then qdel them;
Just so it could check their icon_state and see if it's not null. However,
spawning so many instances is quite intensive. An undocumented feature
(documented in the redbook, a list of undocumented features); You can
directly access a compile-time variable with just it's path by using
initial().
