Turn lights on when button is pushed

Finished.

Change-Id: I53880c31a5d46499b7875e154bae9b5b7716091c
diff --git a/y2017/control_loops/superstructure/superstructure.cc b/y2017/control_loops/superstructure/superstructure.cc
index 343d809..357c4b6 100644
--- a/y2017/control_loops/superstructure/superstructure.cc
+++ b/y2017/control_loops/superstructure/superstructure.cc
@@ -105,6 +105,9 @@
         ::std::max(-kMaxIndexerRollerVoltage,
                    ::std::min(unsafe_goal->indexer.voltage_rollers,
                               kMaxIndexerRollerVoltage));
+
+    // Set the lights on or off
+    output->lights_on = unsafe_goal->lights_on;
   }
 }