rework talking items and re-enable them, made xenoarch boxes have a variable internal size, added three new eldritch xenoarch finds (poltergeist mask, vampiric statuette, endless replenishing container)

Signed-off-by: Cael Aislinn <cael_aislinn@yahoo.com.au>

Conflicts:
	code/modules/research/xenoarchaeology/finds/finds_defines.dm

code/game/objects/objs.dm

@@ -130,6 +130,8 @@
 
 
 /obj/proc/hear_talk(mob/M as mob, text)
+	if(talking_atom)
+		talking_atom.catchMessage(text, M)
 /*
 	var/mob/mo = locate(/mob) in src
 	if(mo)