Xenobio2 Tweaks

Adds nameVar to products, sets it to products/xenos when they are created from the proper machinery.
Adds the manual injector to the machinery that can take beakers, preventing them from spilling onto the machine when inserted.
Tweaks the NanoUI to properly display percent mutated, adds a proper check to see if it is not a xeno occupant.

code/modules/xenobio2/mob/xeno procs.dm

@@ -51,8 +51,6 @@ Procs for targeting
 	if(!stasis)
 		if(!reagents)
 			return
-		if(reagents.total_volume <= 0)
-			return
 
 		//Let's handle some chemical smoke, for scientific smoke bomb purposes.
 		for(var/obj/effect/effect/smoke/chem/smoke in view(1, src))

code/modules/xenobio2/mob/xeno_product.dm

@@ -9,4 +9,5 @@ Xenobiological product lives here as a basic type.
 	var/datum/xeno/traits/traits
 	var/source = "Unknown"
 	var/product = "mess"
+	var/nameVar = "blah"