Mitigates (autolathe) recycling exploits by minimizing what can be recycled, adding unit tests and fixing the recipes (#10375)

* Mitigates research recycling exploits by minimizing what can be recycled

* Moves the research design check into a new unit test

* Adds unit test for stack material recipes costs and fixes these costs

* Instead of changing recipes the resulting materials are worth less

* Crap fix

code/modules/organs/internal/stomach.dm

@@ -26,7 +26,7 @@
 	ingested = new /datum/reagents/metabolism(240, owner, CHEM_INGEST)
 	if(!ingested.my_atom)
 		ingested.my_atom = src
-	if(species.gluttonous)
+	if(species && species.gluttonous)
 		action_button_name = PUKE_ACTION_NAME
 
 /obj/item/organ/internal/stomach/removed()
@@ -140,4 +140,4 @@
 	if(!QDELETED(M))
 		qdel(M)
 
-#undef PUKE_ACTION_NAME
+#undef PUKE_ACTION_NAME