Add test for animated WebP image array
Add test for animated WebP image array

The image array used for +[UIImage animatedImageWithImages:] should share the same size.

awkward/SDWebImage,zhang-yawei/SDWebImage,odyth/SDWebImage,iheartradio/SDWebImage,rs/SDWebImage,dpettigrew/SDWebImage,awkward/SDWebImage,dreampiggy/SDWebImage,dreampiggy/SDWebImage,Insfgg99x/SDWebImage,dreampiggy/SDWebImage,altrooz/SDWebImage,tualatrix/SDWebImage,awkward/SDWebImage,smule/SDWebImage,Kekanto/SDWebImage