xName missing in CCSale, CCAuth, CCCapture, CCCredit, transactions

[mfried40]

Describe the bug
When processing a CCSale transaction the xName property is missing in the request

To Reproduce

Cardknox cardknox = new Cardknox(new CardknoxReqest(<Key>, <SoftwareName>, <Version>));
CCSale ccSale = new CCSale();
ccSale.Amount = 1.00m;
//add the name on card
ccSale.Name = "Name On Card";
ccSale.CardNum = "4444333322221111";
ccSale.Exp = "1234";
CardknoxResponse response = cardknox.CCSale(ccSale);
//now check the transaction in cardknox portal the name on card will be missing

Expected behavior
Name should be included in the request

Additional context
Code to add the name to the request is missing here

// The next many fields are optional and so there will be a lot of if statements here
// Optional, but recommended
if (!IsNullOrWhiteSpace(_sale.Street))
    _values.Add("xStreet", _sale.Street);

if (!IsNullOrWhiteSpace(_sale.Zip))
    _values.Add("xZip", _sale.Zip);

I'll add the required code, test it and make a pull request

[mfried40]

I noticed now that it's also missing in CCAuth, CCCapture, and CCCredit transactions