PCG settings class that allows spawning actors with some options to perform the work more efficiently. Note that depending on the options, any PCG components on the spawned actors can be also generated, which is why this class derives fromUPCGBaseSubgraphSettings- it has similar inner-workings to the subgraph node as far as data passing and dispatch go. Note that at this point in time, results from the underlying graphs being generated is not propagated back as results of this node.