Add second transfer roller motor

Still use same behavior of always sending opposite voltages

Signed-off-by: Milind Upadhyay <milind.upadhyay@gmail.com>
Change-Id: If6bcf617db37b40924556d59dcfa23e7d43bdef1
diff --git a/y2022/actors/autonomous_actor.h b/y2022/actors/autonomous_actor.h
index f01da02..37a8cdb 100644
--- a/y2022/actors/autonomous_actor.h
+++ b/y2022/actors/autonomous_actor.h
@@ -40,8 +40,11 @@
   void set_roller_back_voltage(double roller_back_voltage) {
     roller_back_voltage_ = roller_back_voltage;
   }
-  void set_transfer_roller_voltage(double voltage) {
-    transfer_roller_voltage_ = voltage;
+  void set_transfer_roller_front_voltage(double voltage) {
+    transfer_roller_front_voltage_ = voltage;
+  }
+  void set_transfer_roller_back_voltage(double voltage) {
+    transfer_roller_back_voltage_ = voltage;
   }
 
   void set_fire_at_will(bool fire) { fire_ = fire; }
@@ -62,7 +65,8 @@
   double intake_back_goal_ = 0.0;
   double roller_front_voltage_ = 0.0;
   double roller_back_voltage_ = 0.0;
-  double transfer_roller_voltage_ = 0.0;
+  double transfer_roller_front_voltage_ = 0.0;
+  double transfer_roller_back_voltage_ = 0.0;
   bool fire_ = false;
 
   aos::Sender<frc971::control_loops::drivetrain::LocalizerControl>