Avoid refire of rules with synthetic Fact Handles

Currently the FromNode and the AccumulateNode create "synthetic" fact handles, that means they're not serialized and they're recreated in memory each time we need the access.

There's already a way to avoid the refiring of the rules but involves serializing and deserializing these synthetic Fact Handles without the objects.

We now want a better way to do it by serializing the objects without their FactHandles and at the same time keep the same behaviour as before (same number of rules should fire)