[Feature Request] Enable 'add cover from url' option

[ohrenkino]

@Emdosis

Copy/pasting enlarges the file by 2 sometimes even 3 times the size so no thanks.

Could you check the original format of the file that you copy and paste and esp. which MP3tag version you use?
As here is a post that says something different:

Cover copy/paste increases cover size

I've changed the copy-paste behavior with Mp3tag v2.95a. Besides the DIB version that is used to create the JPEG, Mp3tag now also copies the actual image data to the clipboard and prefers that when pasting internally.