PromptPay QR+ References https://www.blognone.com/node/95133 https://www.blognone.com/node/95311 https://www.blognone.com/node/95530 https://github.com/dtinth/promptpay-qr http://introcs.cs.princeton.edu/java/61data/CRC16CCITT.java http://www.truemoney.com/promptpay-aom/ https://www.blognone.com/node/97186
