/// <summary>
/// Downloads images to a directory.
/// </summary>
/// <param name="directory">A directory to download the images to.</param>
/// <param name="uris">List of image uris.</param>
public static void DownloadImages(string directory, List <Uri> uris)
{
ProgressBar module = new ProgressBar(20);
var downloader = new ImageDownloader(directory);
var stopwatch = new Stopwatch();
stopwatch.Start();
downloader.DownloadImagesAsync(uris, module);
stopwatch.Stop();
Console.WriteLine($"\nDone! Elapsed time: {stopwatch.ElapsedMilliseconds}\n");
}