Added duration and tags to videos

YTManager/Models/Video.cs

@@ -32,6 +32,10 @@ namespace YTManager.Models {
         [Required]
         public DateTime AddedtoDB { get; set; }
 
+        // How long the video is
+        [Required]
+        public TimeSpan Duration { get; set; }
+
         // What channel this video comes from.
         [Required]
         public Channel Channel { get; set; }