Add a "Contains Only" operator to the Order Rules

Currently we have to manually find orders that only contain a specific named product.

We would like to be able to use Order Rules to search through the entire order and if it finds that every item on the order has [defined name] name, then to put it into AwaitingConfirmation or Cancel it.

If it finds an order with this [defined name] product, but the order has other items on it as well, to leave it.