Split the accelerating and decelerating gains for the superstructure.

Change-Id: Iae2c6d994a35443d0bc26fc5b811247ff2c7bf8b
diff --git a/y2016/control_loops/superstructure/superstructure.q b/y2016/control_loops/superstructure/superstructure.q
index 277e3ce..0883446 100644
--- a/y2016/control_loops/superstructure/superstructure.q
+++ b/y2016/control_loops/superstructure/superstructure.q
@@ -81,6 +81,8 @@
     JointState intake;
     JointState shoulder;
     JointState wrist;
+
+    int32_t shoulder_controller_index;
   };
 
   message Position {