Rename PotAndAbsEncoder to be more consistent

$ git sed 's/AbsoluteEstimatorState/PotAndAbsoluteEncoderEstimatorState/'
$ git sed 's/PotAndAbsEncoderZeroingEstimator/PotAndAbsoluteEncoderZeroingEstimator/'

It's a bit all over the place in terms of naming and doesn't leave much
space to name something which is just an absolute encoder.

Change-Id: Iecbee91191bd9cc16eb08fd24b91335ef772beec
diff --git a/frc971/control_loops/profiled_subsystem.q b/frc971/control_loops/profiled_subsystem.q
index 3bcd6c2..d1356da 100644
--- a/frc971/control_loops/profiled_subsystem.q
+++ b/frc971/control_loops/profiled_subsystem.q
@@ -113,7 +113,7 @@
   float feedforwards_power;
 
   // State of the estimator.
-  .frc971.AbsoluteEstimatorState estimator_state;
+  .frc971.PotAndAbsoluteEncoderEstimatorState estimator_state;
 };
 
 struct IndexProfiledJointStatus {