Add ids to flatbuffer fields in y2012, y2016, frc971, and aos

Change-Id: I9ed9006ce6224e2df0459df47771786b928164a1
diff --git a/aos/network/connect.fbs b/aos/network/connect.fbs
index 32893b8..b593472 100644
--- a/aos/network/connect.fbs
+++ b/aos/network/connect.fbs
@@ -6,8 +6,8 @@
 // It communicates the channels that need to be forwarded back.
 table Connect {
   // The node making the request.
-  node:aos.Node;
+  node:aos.Node (id: 0);
 
   // The channels that we want transfered to this client.
-  channels_to_transfer:[Channel];
+  channels_to_transfer:[Channel] (id: 1);
 }