added encode overload to allow raw byte arrays as content for aztec code
added encode overload to allow raw byte arrays as content for aztec code

micjahn/ZXing.Net,DHMechatronicAG/ZXing.Net,micjahn/ZXing.Net,DHMechatronicAG/ZXing.Net,micjahn/ZXing.Net,DHMechatronicAG/ZXing.Net