Messaging interface now exposes the nodes own address.

src/main/kotlin/core/messaging/InMemoryNetwork.kt

@@ -130,6 +130,8 @@ public class InMemoryNetwork {
         @GuardedBy("this")
         protected val pendingRedelivery = LinkedList<Message>()
 
+        override val myAddress: SingleMessageRecipient = handle
+
         protected val backgroundThread = if (manuallyPumped) null else thread(isDaemon = true, name = "In-memory message dispatcher ") {
             while (!currentThread.isInterrupted) {
                 try {

src/main/kotlin/core/messaging/Messaging.kt

@@ -65,6 +65,9 @@ interface MessagingService {
      * Returns an initialised [Message] with the current time, etc, already filled in.
      */
     fun createMessage(topic: String, data: ByteArray): Message
+
+    /** Returns an address that refers to this node */
+    val myAddress: SingleMessageRecipient
 }
 
 /**