Implement zxing-wasm

[adamalfredsson]

Hi, @adamalfredsson, hope you're well.

I'm the owner of zxing-wasm which is an ES module WebAssembly build wrapper of an actively maintained cpp port of ZXing zxing-cpp. zxing-wasm has smaller sizes, can read more barcode formats, has better performance and more decode hints to configure. It can also read mirrored or color-inverted barcodes.

As I know @zxing/library is in maintenance mode now and there won't be any active feature updates in the foreseeable future. I was wondering if we can join forces and integrate the zxing-wasm package into this repo?

I'm also expecting more feedbacks on the API or other things so I can make proper adjustments before releasing the first official version.

BTW, I have an another repo barcode-detector which serves as a polyfill of the Barcode Detection API of web browsers, that is built upon zxing-wasm. And barcode-detector is utilized in vue-qrcode-reader which is something like this repo but for Vue.js users. I have made some contributions there, and I think there're some common issues we can learn and solve together, especially those related to camera behaviors on different devices.

Originally posted by @Sec-ant in #19 (comment)

• Closes inverted qrcode #17
• Closes Mirrored QR Codes #19