feat(*): Add inline progress utility

This is a customised version of the one used in the YouTubeExplode converter windows app, that now only prints when there's a new number, in order to get it to work better using docker logs to monitor it rather than an actual console.

YouTubeChannelDownloader/Utilities/InlineProgress.cs

@@ -0,0 +1,35 @@
+using System;
+
+namespace YouTubeChannelDownloader.Utilities
+{
+    internal class InlineProgress : IProgress<double>, IDisposable
+    {
+        private readonly int _posX;
+        private readonly int _posY;
+        private string lastProgressPrint = string.Empty;
+
+        public InlineProgress()
+        {
+            _posX = Console.CursorLeft;
+            _posY = Console.CursorTop;
+        }
+
+        public void Report(double progress)
+        {
+            string currentProgress = $"{progress:P1}";
+            if (currentProgress != lastProgressPrint)
+            {
+                Console.SetCursorPosition(_posX, _posY);
+                Console.WriteLine(currentProgress);
+
+                lastProgressPrint = currentProgress;
+            }
+        }
+
+        public void Dispose()
+        {
+            Console.SetCursorPosition(_posX, _posY);
+            Console.WriteLine("Completed ✓");
+        }
+    }
+}