Added the ability to download thumbnails using the command youtubedr thumbnail <video_url>. This change also includes additional methods for filtering and extending Thumbnails lists.
Issues to fix
Partially address #304 when used as a module by allowing you to access additional thumbnails not included in the video response using Thumbnails.Extended(videoID), but without gauranteeing that the thumbnail actually exists.
Description
Added the ability to download thumbnails using the command
youtubedr thumbnail <video_url>. This change also includes additional methods for filtering and extendingThumbnailslists.Issues to fix
Partially address #304 when used as a module by allowing you to access additional thumbnails not included in the video response using
Thumbnails.Extended(videoID), but without gauranteeing that the thumbnail actually exists.