public void BitsRequired()
{
Assert.AreEqual(Unsafe.SizeOf <i32>() * 8, BitBuffer.BitsRequired(i32.MinValue, i32.MaxValue));
Assert.AreEqual(Unsafe.SizeOf <i8>() * 8, BitBuffer.BitsRequired(i8.MinValue, i8.MaxValue));
Assert.AreEqual(2, BitBuffer.BitsRequired(1, 3));
}