Added goal output to claw.

Change-Id: I7fca772ae7c772462c5844d2ecb2793ae59bd94f
diff --git a/frc971/control_loops/claw/claw.q b/frc971/control_loops/claw/claw.q
index 0105441..e05f779 100644
--- a/frc971/control_loops/claw/claw.q
+++ b/frc971/control_loops/claw/claw.q
@@ -49,6 +49,8 @@
 
     // Angle of wrist joint.
     double angle;
+    // Goal angle of wrist joint.
+    double goal_angle;
     // Voltage of intake rollers. Positive means sucking in, negative means
     // spitting out.
     double intake;