Holomaps & optical material scanners! (#9311)

* theoretical holomap base code

* Sprite

* Holomaps!

* changelog

* fucking changelogs

* Stuff!

* Optical Material Scanner rework.

Makes optical material scanners work as auto-updating holomap on your
eyes.

Abstracted mesons and materials scanners to a
/obj/item/clothing/glasses/scanner subtype.

Kept typed loops.

* Changelog update.

code/game/objects/items/devices/radio/intercom.dm

@@ -12,6 +12,9 @@
 	var/last_tick //used to delay the powercheck
 	var/buildstage = 0
 
+	holomap = TRUE
+	auto_holomap = TRUE
+
 /obj/item/device/radio/intercom/universe/New()
 	tag = "UNIVERSE"
 	return ..()