Add automaton to lib/oslo and stackrc

Part of blueprint adopt-automaton

Change-Id: I520643b74aced431f7a46b7d7b94616bb2e6bf8e
diff --git a/lib/oslo b/lib/oslo
index d9688a0..b195687 100644
--- a/lib/oslo
+++ b/lib/oslo
@@ -22,6 +22,7 @@
 
 # Defaults
 # --------
+GITDIR["automaton"]=$DEST/automaton
 GITDIR["cliff"]=$DEST/cliff
 GITDIR["debtcollector"]=$DEST/debtcollector
 GITDIR["oslo.concurrency"]=$DEST/oslo.concurrency