Adds spraycans, fixes lipstick, modifies scleaner

This commit does the following:
 - Adds spraycans as a subtype of crayons.
   - Slight crayon overhaul to make room for this
   - Can spray graffiti, runes, and letters on floors & walls
   - Can spray mobs and paint their face

 - Fixes & overhauls lipstick
   - Lipstick is now overlay and Blend() based.
   - Also fixes a few bugs with the system.
   - Updates paper code to accomodate for wiping off spraypaint as well

 - Slight modification to space cleaner
   - Space cleaner now cleans your face of lipstick and spraypaint

code/modules/research/designs/autolathe_designs.dm

@@ -98,6 +98,14 @@
 	build_path = /obj/item/weapon/wrench
 	category = list("initial","Tools")
 
+/datum/design/spraycan
+	name = "Spraycan"
+	id = "spraycan"
+	build_type = AUTOLATHE
+	materials = list("$metal" = 100, "$glass" = 100)
+	build_path = /obj/item/toy/crayon/spraycan
+	category = list("initial", "Tools")
+
 /datum/design/airalarm_electronics
 	name = "Air Alarm Electronics"
 	id = "airalarm_electronics"