public static RotationalStiffness CentinewtonMillimetersPerDegree <T>(this T value) =>
 RotationalStiffness.FromCentinewtonMillimetersPerDegree(Convert.ToDecimal(value));
 public void NumberToCentinewtonMillimetersPerDegreeTest() =>
 Assert.Equal(RotationalStiffness.FromCentinewtonMillimetersPerDegree(2), 2.CentinewtonMillimetersPerDegree());