Convert imu_values to event loops.

Change-Id: Ia31a022550ef076526e2198e1dbf60570caf6a16
diff --git a/frc971/wpilib/ADIS16448.h b/frc971/wpilib/ADIS16448.h
index a1d6dcd..5af6a4f 100644
--- a/frc971/wpilib/ADIS16448.h
+++ b/frc971/wpilib/ADIS16448.h
@@ -14,6 +14,7 @@
 #include "aos/events/event-loop.h"
 #include "aos/logging/logging.h"
 #include "aos/robot_state/robot_state.q.h"
+#include "frc971/wpilib/imu.q.h"
 #include "frc971/wpilib/spi_rx_clearer.h"
 
 namespace frc971 {
@@ -94,6 +95,7 @@
 
   ::aos::EventLoop *event_loop_;
   ::aos::Fetcher<::aos::JoystickState> joystick_state_fetcher_;
+  ::aos::Sender<::frc971::IMUValues> imu_values_sender_;
 
   // TODO(Brian): This object has no business owning these ones.
   const ::std::unique_ptr<frc::SPI> spi_;