fixes #585 - Use tmdb updates api for people

MediaBrowser.Controller/Library/IPeoplePrescanTask.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace MediaBrowser.Controller.Library
+{
+    /// <summary>
+    /// Interface IPeoplePrescanTask
+    /// </summary>
+    public interface IPeoplePrescanTask
+    {
+        /// <summary>
+        /// Runs the specified progress.
+        /// </summary>
+        /// <param name="progress">The progress.</param>
+        /// <param name="cancellationToken">The cancellation token.</param>
+        /// <returns>Task.</returns>
+        Task Run(IProgress<double> progress, CancellationToken cancellationToken);
+    }
+}