Add ability for +VVEDIT users to scale damage/healing in the game (#35255)

* Initial commit

* Add universal modifier for all damage/heals, make guidebooks work.

* help text

Content.Server/Chemistry/EntitySystems/ChemistryGuideDataSystem.cs

@@ -64,4 +64,9 @@ public sealed class ChemistryGuideDataSystem : SharedChemistryGuideDataSystem
         var ev = new ReagentGuideRegistryChangedEvent(changeset);
         RaiseNetworkEvent(ev);
     }
+
+    public override void ReloadAllReagentPrototypes()
+    {
+        InitializeServerRegistry();
+    }
 }