Add a simulated message bridge

This gives us multi-node simulations!

Change-Id: I10fa955653766a26e4d11471a6dae5b47ea5cd1c
diff --git a/aos/events/logging/log_stats.cc b/aos/events/logging/log_stats.cc
index 2d9604f..c766fe6 100644
--- a/aos/events/logging/log_stats.cc
+++ b/aos/events/logging/log_stats.cc
@@ -65,7 +65,7 @@
 
   // Make an eventloop for retrieving stats
   std::unique_ptr<aos::EventLoop> stats_event_loop =
-      log_reader_factory.MakeEventLoop("logstats");
+      log_reader_factory.MakeEventLoop("logstats", reader.node());
   stats_event_loop->SkipTimingReport();
 
   // Read channel info and store in vector