QR code template

[peterpeterparker]

As for graph, this new template/slide will need an external new web component

The idea is to be able to add a slide, mostly the last slide of a presentation, which contains a QR code which point to the URL where the talk (as a PWA) is deployed

First QR code lib research:

https://github.com/kazuhikoarase/qrcode-generator#readme
https://github.com/kazuhikoarase/qrcode-generator/tree/master/js
https://davidshimjs.github.io/qrcodejs/

https://github.com/soldair/node-qrcode

https://github.com/cozmo/jsQR

[peterpeterparker]

Component will be implemented in https://github.com/fluster/deckdeckgo-qrcode