Added checks for non-user foreign keys in stores. Load/Saving stores' order is now based on table dependencies. Added ability to use chat message when using redemption.

Store/IStore.cs

@@ -7,7 +7,7 @@ namespace HermesSocketServer.Store
         Task Load();
         bool Modify(K? key, Action<V> modify);
         bool Modify(K? key, V value);
-        bool Remove(K? key);
+        bool Remove(K? key, bool fromCascade = false);
         Task Save();
         bool Set(K? key, V value);
     }