Move aos/controls to frc971/control_loops

Also put what was aos/controls/control_loops.fbs in y2012/control_loops
because that's the only user.

Change-Id: I8f402b0708103077e135a41e55ef5e4f23681d87
Signed-off-by: James Kuszmaul <jabukuszmaul@gmail.com>
diff --git a/y2017/control_loops/superstructure/shooter/shooter.h b/y2017/control_loops/superstructure/shooter/shooter.h
index 19fc7dd..afb627d 100644
--- a/y2017/control_loops/superstructure/shooter/shooter.h
+++ b/y2017/control_loops/superstructure/shooter/shooter.h
@@ -4,7 +4,7 @@
 #include <array>
 #include <memory>
 
-#include "aos/controls/control_loop.h"
+#include "frc971/control_loops/control_loop.h"
 #include "aos/time/time.h"
 #include "frc971/control_loops/state_feedback_loop.h"
 #include "Eigen/Dense"