feat(*): Add SftpConfig model

YouTubeChannelDownloader/Models/SftpConfig.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace YouTubeChannelDownloader.Models
+{
+    public class SftpConfig
+    {
+        public string Host { get; set; }
+        public int Port { get; set; }
+        public string UserName { get; set; }
+        public string Password { get; set; }
+    }
+}