StackServiceMapper(getStackService: (Peer<*>) -> T, peerBuilder: PeerBuilder<T, K>, nodeMapper: NodeMapper = NodeMapper.instance)
Retrieves a Peer from a NodeMapper for a given NodeKey and extracts the StackService with get. The NodeMapper will build a Peer with the PeerBuilder given by nodeBuilderProvider if necessary
nodeMapper - The NodeMapper where all nodes are held
getStackService - function to extract the StackService from a given Peer