Sequence the indexer

Wiggle it and make sure the right rollers are spinning while we are
out.

Change-Id: I1f0596735c214ed2a7696be298faf6049f610128
diff --git a/y2020/control_loops/superstructure/superstructure.h b/y2020/control_loops/superstructure/superstructure.h
index 8f7cd8c..1526610 100644
--- a/y2020/control_loops/superstructure/superstructure.h
+++ b/y2020/control_loops/superstructure/superstructure.h
@@ -56,6 +56,9 @@
 
   Climber climber_;
 
+  aos::monotonic_clock::time_point shooting_start_time_ =
+      aos::monotonic_clock::min_time;
+
   double time_ = 0.0;
 
   DISALLOW_COPY_AND_ASSIGN(Superstructure);