create generic module type that is also instantiated

Assets/Engine/Runtime/Modules/Module.cs

@@ -127,6 +127,11 @@ namespace EscapeRoomEngine.Engine.Runtime.Modules
                 return new DoorModule(space, doorModuleDescription);
             }
 
+            if (description.HasType(ModuleType.Generic))
+            {
+                return new Module(space, description);
+            }
+
             throw new WrongTypeException("There is no module type fitting this description.");
         }
 

Assets/Engine/Runtime/Modules/ModuleType.cs

@@ -4,5 +4,6 @@
     {
         DoorEntrance, DoorExit, // door types
         Puzzle,
+        Generic, // for supporting modules that have no role themselves
     }
 }