Added the option to upload the new image sizes through the AdImage (Live) method.

• For 1:1 to 3:4/4:3 aspect ratios, the requirements are from 450 to 5000 pixels on the long side, with a minimum 450 pixels on the small side.
• For 16:9 aspect ratios, the requirements are from 1080×607 to 5000×2812 pixels.

After a month, current image sizes will no longer be available for upload through AdImage (Live) in API Live 4.