Frezon (#9980)

* stuff i'll have to fix anyway when n2o gets merged

* everything except the finished reactions

* freon coolant reaction but with bad curve

* miasmic subsumation

* freon production

* nitrogen and diff temp scaling

* uhh meant to change that

* #

* hitting that frezon boof

Content.Shared/Atmos/Piping/Unary/Components/SharedVentScrubberComponent.cs

@@ -21,7 +21,8 @@ namespace Content.Shared.Atmos.Piping.Unary.Components
             Gas.Tritium,
             Gas.WaterVapor,
             Gas.Miasma,
-            Gas.NitrousOxide
+            Gas.NitrousOxide,
+            Gas.Frezon
         };
 
         // Presets for 'dumb' air alarm modes