Added column and tests

The column works!  We can also shut the intake down for hanging.

Change-Id: I4369d489d1a07a688f204fd9bb00ef7ad787f5a3
diff --git a/y2017/control_loops/superstructure/superstructure.q b/y2017/control_loops/superstructure/superstructure.q
index 99989b3..dd8a65a 100644
--- a/y2017/control_loops/superstructure/superstructure.q
+++ b/y2017/control_loops/superstructure/superstructure.q
@@ -18,6 +18,9 @@
 
   // Voltage to send to the rollers. Positive is sucking in.
   double voltage_rollers;
+
+  // If true, disable the intake so we can hang.
+  bool disable_intake;
 };
 
 struct IndexerGoal {
@@ -120,7 +123,7 @@
 struct ColumnEstimatorState {
   bool error;
   bool zeroed;
-  .frc971.HallEffectAndPositionEstimatorState intake;
+  .frc971.HallEffectAndPositionEstimatorState indexer;
   .frc971.HallEffectAndPositionEstimatorState turret;
 };