Factor out generic aiming code from 2020 aimer

Should have no behavioral impacts.

Change-Id: Ic7994646b7290ed6e9bbd4ae1ea58b6c0833501c
Signed-off-by: James Kuszmaul <jabukuszmaul+collab@gmail.com>
diff --git a/y2020/control_loops/superstructure/turret/BUILD b/y2020/control_loops/superstructure/turret/BUILD
index 3761868..703c01e 100644
--- a/y2020/control_loops/superstructure/turret/BUILD
+++ b/y2020/control_loops/superstructure/turret/BUILD
@@ -43,6 +43,7 @@
         "//frc971/control_loops:control_loops_fbs",
         "//frc971/control_loops:pose",
         "//frc971/control_loops:profiled_subsystem_fbs",
+        "//frc971/control_loops/aiming",
         "//frc971/control_loops/drivetrain:drivetrain_status_fbs",
         "//y2020:constants",
         "//y2020/control_loops/drivetrain:drivetrain_base",