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/y2020/control_loops/superstructure/superstructure.cc b/y2020/control_loops/superstructure/superstructure.cc
index 9a48095..ce816a0 100644
--- a/y2020/control_loops/superstructure/superstructure.cc
+++ b/y2020/control_loops/superstructure/superstructure.cc
@@ -12,8 +12,8 @@
 
 Superstructure::Superstructure(::aos::EventLoop *event_loop,
                                const ::std::string &name)
-    : aos::controls::ControlLoop<Goal, Position, Status, Output>(event_loop,
-                                                                 name),
+    : frc971::controls::ControlLoop<Goal, Position, Status, Output>(event_loop,
+                                                                    name),
       hood_(constants::GetValues().hood),
       intake_joint_(constants::GetValues().intake),
       turret_(constants::GetValues().turret.subsystem_params),