Requires wp-admin/includes/image.php to make `wp_read_image_metadata()` function available. Fixes error introduced in [43589]. Props ocean90, soulseekah. Fixes #43757. Built from https://develop.svn.wordpress.org/trunk@43604 git-svn-id: http://core.svn.wordpress.org/trunk@43433 1a063a9b-81f0-0310-95a4-ce76da25c4cd