Encapsulates a left and right encoder and provides drive-specific calculations
 public static void TestRotational()
 {
     using (Encoder left = new Encoder(0, 1), right = new Encoder(2, 3))
     {
         DriveEncoders e = new DriveEncoders(left, right);
         SimData.Encoder[0].Count = 4000;
         SimData.Encoder[1].Count = -4000;
         Assert.AreEqual(1000, e.TurnDistance);
     }
 }