Reliable ACKs for DMs (#8165)

* RoutingModule::sendAckNak takes ackWantsAck arg to set want_ack on the ACK itself

* Use reliable delivery for traceroute requests (which will be copied to traceroute responses by setReplyTo)

* Update ReliableRouter::sniffReceived to use ReliableRouter::shouldSuccessAckWithWantAck

* Use isFromUs

* Update MockRoutingModule::sendAckNak to include ackWantsAck argument (currently ignored)

---------

Co-authored-by: Ben Meadors <benmmeadors@gmail.com>

src/mesh/ReliableRouter.h

@@ -31,4 +31,10 @@ class ReliableRouter : public NextHopRouter
      * We hook this method so we can see packets before FloodingRouter says they should be discarded
      */
     virtual bool shouldFilterReceived(const meshtastic_MeshPacket *p) override;
+
+  private:
+    /**
+     * Should this packet be ACKed with a want_ack for reliable delivery?
+     */
+    bool shouldSuccessAckWithWantAck(const meshtastic_MeshPacket *p);
 };