Todo

[RexWzh]

Part of the plan follows the discussion here: https://discourse.julialang.org/t/ann-qrcode-jl-create-qr-code-within-julia/26923/

• [ ] #47
• [ ] #33
• [x] ~#38~
• [ ] Interact with other tools, for example, zbar, OpenCV and etc.
• [x] ~Some structural design, for example, use QRCode to represent a QR code matrix, and allow operations on it like plot or exportimage.~
• [ ] Deploy this as a service using Genie.jl(as suggested in the forem)