[Feature Req] Add webp animation

[Ero-gamer]

How come there are JXL animation but no webp animation? Webp animation feature was released in 2011 so I'm surprised to see JXL animation feature added before webp animation.

[T8RIN]

I just didn't know any lib to do webp animation creation

[T8RIN]

Just found it now
https://github.com/penfeizhou/APNG4Android

[Ero-gamer]

I just didn't know any lib to do webp animation creation

As I thought, it was a lack of compatible lib.

[Ero-gamer]

Just found it now https://github.com/penfeizhou/APNG4Android

Haha, you work fast, I was actually gonna refer this lib to you but you already have it. Looking forward to your implemention of this feature. You are doing an amazing job, kudos to you :)

[T8RIN]

Added