Add down estimator plot

Change-Id: Id3fe6fef762cde1e77d09f779c451b3c2e3a471e
diff --git a/frc971/analysis/BUILD b/frc971/analysis/BUILD
index b72634a..2223955 100644
--- a/frc971/analysis/BUILD
+++ b/frc971/analysis/BUILD
@@ -79,6 +79,7 @@
         "//aos:configuration_ts_fbs",
         "//aos/network/www:demo_plot",
         "//aos/network/www:proxy",
+        "//frc971/control_loops/drivetrain:down_estimator_plotter",
         "//frc971/control_loops/drivetrain:drivetrain_plotter",
         "//frc971/control_loops/drivetrain:robot_state_plotter",
         "//frc971/wpilib:imu_plotter",