Bleeding edgy refresh (#303)

* not code stuff

* other things

* global vars, defines, helpers

* onclick hud stuff, orphans, world.dm

* controllers and datums

* game folder

* everything not client/mobs in modules

* client folder

* stage 1 mob stuff

* simple animal things

* silicons

* carbon things

* ayylmaos and monkeys

* hyoomahn

* icons n shit

* sprite fixes

* compile fixes

* some fixes I cherrypicked.

* qdel fixes

* forgot brain refractors

code/modules/tgui/states/observer.dm

@@ -0,0 +1,13 @@
+ /**
+  * tgui state: observer_state
+  *
+  * Checks that the user is an observer/ghost.
+ **/
+
+/var/global/datum/ui_state/observer_state/observer_state = new()
+
+/datum/ui_state/observer_state/can_use_topic(src_object, mob/user)
+	if(isobserver(user))
+		return UI_INTERACTIVE
+	return UI_CLOSE
+