Added indexer support, with stall detection.

Re-tuned some other loops while I was learning more about the indexer.

Change-Id: I893f1f273b31357ae9137601ca27322fc3b09d98
diff --git a/y2017/control_loops/superstructure/BUILD b/y2017/control_loops/superstructure/BUILD
index 6c8291d..ebcc164 100644
--- a/y2017/control_loops/superstructure/BUILD
+++ b/y2017/control_loops/superstructure/BUILD
@@ -26,9 +26,10 @@
     ':superstructure_queue',
     '//aos/common/controls:control_loop',
     '//y2017/control_loops/superstructure/hood',
-    '//y2017/control_loops/superstructure/turret',
+    '//y2017/control_loops/superstructure/indexer',
     '//y2017/control_loops/superstructure/intake',
     '//y2017/control_loops/superstructure/shooter',
+    '//y2017/control_loops/superstructure/turret',
     '//y2017:constants',
   ],
 )
@@ -49,6 +50,7 @@
     '//frc971/control_loops:position_sensor_sim',
     '//frc971/control_loops:team_number_test_environment',
     '//y2017/control_loops/superstructure/hood:hood_plants',
+    '//y2017/control_loops/superstructure/indexer:indexer_plants',
     '//y2017/control_loops/superstructure/intake:intake_plants',
     '//y2017/control_loops/superstructure/shooter:shooter_plants',
     '//y2017/control_loops/superstructure/turret:turret_plants',