support system wake on recording schedule

MediaBrowser.Controller/Power/IPowerManagement.cs

@@ -0,0 +1,13 @@
+using System;
+
+namespace MediaBrowser.Controller.Power
+{
+    public interface IPowerManagement
+    {
+        /// <summary>
+        /// Schedules the wake.
+        /// </summary>
+        /// <param name="utcTime">The UTC time.</param>
+        void ScheduleWake(DateTime utcTime);
+    }
+}