How to print QRCode with Chinese content

[caichunjian520]

All works fine with English Characters. If I change the text to Chinese, the QRCode won't print

[KevinGong2013]

let receipt = Receipt(.🖨️58(String.GBEncoding.GB_18030_2000))
<<< QRCode(content: "你好，世界")
<<~ .page(.printAndFeed(lines: 0))

let data = Data(receipt.data)
dummyPrinter.write(data)

Printer framework has been rewrite.

PS: String.GBEncoding.GB_18030_2000 is key point.