Little endian decode [feature request]

[kinguru]

Dear Dave,
could you please add Little Endian guid bytes order support? It's need when Guid is shortened in another application, which default is Little Endian. The solution is easy. In decode method, need to convert Guid byte array to hex string before creating a Guid:

byte[] blob = Convert.FromBase64String(base64);
var hexString = ToHexString(blob);
var guid = new Guid(hexString);

ToHexString could be implemented like:

static string ToHexString(byte[] bytes)
{
    var str1 = BitConverter.ToString(bytes);
    return str1.Replace("-", "");
}

or another more clear algorithm is to swap byte[] bytes, instead of convert to HexString

result[0] = blob[3];
result[1] = blob[2];
result[2] = blob[1];
result[3] = blob[0];
result[4] = blob[5];
result[5] = blob[4];
result[6] = blob[7];
result[7] = blob[6];