Add Xfolio jp

[Froktime]

Sample: https://xfolio.jp/en/portfolio/KuonNekosuki/works/484518

Normal image
https://assets.xfolio.jp/secure/1359786657/creator/33978/kv/666960_nMI0Q1irTw.webp?hash=WC1elHajpV_9kZhDmMXZJQ&expires=1710666000

Website embeds the original image https://xfolio.jp/fullscale_image?image_id=2478660&work_id=484518
Original image (php page): https://xfolio.jp/user_asset.php?id=2478660&work_id=484518&work_image_id=2478660&type=work_image

Japanese websites are really secure. There are images that cannot open urls, they can only work when on its website. This website has links to original images like DeviantArt, so I recommend it :_