Automatically generate shooter constants.

Change-Id: I06cbdcb80e9ccd003fb190ea2ae03217cfa34feb
diff --git a/y2014/control_loops/shooter/shooter.cc b/y2014/control_loops/shooter/shooter.cc
index 52589f7..7506a0c 100644
--- a/y2014/control_loops/shooter/shooter.cc
+++ b/y2014/control_loops/shooter/shooter.cc
@@ -15,6 +15,9 @@
 namespace frc971 {
 namespace control_loops {
 
+using ::y2014::control_loops::shooter::kSpringConstant;
+using ::y2014::control_loops::shooter::kMaxExtension;
+using ::y2014::control_loops::shooter::MakeShooterLoop;
 using ::aos::time::Time;
 
 void ZeroedStateFeedbackLoop::CapU() {