AsyncFP Properties

Factories are a good way to handle most configuration issues, but there are always a few things that seem to span multiple actors or which need to be set from the command line. The Properties component can be useful in these cases. This component can be added to the RootSystemServices actor and to Subsystem actors. An actor that is part of a subsystem has access to that subsystem's properties as well as the properties of the subsystem's superior, recursively.