New: Add import date to upgraded episodes in CustomScript and Webhook connections

Closes #3615

src/NzbDrone.Core/Notifications/CustomScript/CustomScript.cs

@@ -109,6 +109,7 @@ namespace NzbDrone.Core.Notifications.CustomScript
             {
                 environmentVariables.Add("Sonarr_DeletedRelativePaths", string.Join("|", message.OldFiles.Select(e => e.RelativePath)));
                 environmentVariables.Add("Sonarr_DeletedPaths", string.Join("|", message.OldFiles.Select(e => Path.Combine(series.Path, e.RelativePath))));
+                environmentVariables.Add("Sonarr_DeletedDateAdded", string.Join("|", message.OldFiles.Select(e => e.DateAdded)));
             }
 
             ExecuteScript(environmentVariables);

src/NzbDrone.Core/Notifications/Webhook/WebhookEpisodeFile.cs

@@ -1,4 +1,5 @@
-using NzbDrone.Core.MediaFiles;
+using System;
+using NzbDrone.Core.MediaFiles;
 
 namespace NzbDrone.Core.Notifications.Webhook
 {
@@ -18,6 +19,7 @@ namespace NzbDrone.Core.Notifications.Webhook
             ReleaseGroup = episodeFile.ReleaseGroup;
             SceneName = episodeFile.SceneName;
             Size = episodeFile.Size;
+            DateAdded = episodeFile.DateAdded;
         }
 
         public int Id { get; set; }
@@ -28,5 +30,6 @@ namespace NzbDrone.Core.Notifications.Webhook
         public string ReleaseGroup { get; set; }
         public string SceneName { get; set; }
         public long Size { get; set; }
+        public DateTime DateAdded { get; set; }
     }
 }