Support jpeg2000 images

[mjsir911]

Hi,

I'm trying to optimize a pdf composed of (mostly) jpeg2k images, extracted with pdfimages -all.

Would be cool for me to just go straight from these without having to add another processing step.

thanks

[axu2]

Can you code and open a PR? The readme has a developer guide.

Pillow supports .jp2 so it might be as simple as adding it to the list of supported extensions.

Hint: search for the list that contains ".webp" @mjsir911

https://github.com/search?q=repo%3Aciromattia%2Fkcc%20webp&type=code

[axu2]

@mjsir911 Can you test the PR? Prebuilt versions linked there