Add option to not use a download client (#35)

code/Infrastructure/Verticals/DownloadClient/DummyDownloadService.cs

@@ -0,0 +1,33 @@
+using Common.Configuration.QueueCleaner;
+using Infrastructure.Verticals.ContentBlocker;
+using Infrastructure.Verticals.ItemStriker;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
+
+namespace Infrastructure.Verticals.DownloadClient;
+
+public sealed class DummyDownloadService : DownloadServiceBase
+{
+    public DummyDownloadService(ILogger<DownloadServiceBase> logger, IOptions<QueueCleanerConfig> queueCleanerConfig, FilenameEvaluator filenameEvaluator, Striker striker) : base(logger, queueCleanerConfig, filenameEvaluator, striker)
+    {
+    }
+
+    public override void Dispose()
+    {
+    }
+
+    public override Task LoginAsync()
+    {
+        return Task.CompletedTask;
+    }
+
+    public override Task<bool> ShouldRemoveFromArrQueueAsync(string hash)
+    {
+        throw new NotImplementedException();
+    }
+
+    public override Task BlockUnwantedFilesAsync(string hash)
+    {
+        throw new NotImplementedException();
+    }
+}