Add GPL modules

MediaBrowser.Model/Diagnostics/IProcess.cs

@@ -0,0 +1,21 @@
+using System;
+using System.IO;
+using System.Threading.Tasks;
+
+namespace MediaBrowser.Model.Diagnostics
+{
+    public interface IProcess : IDisposable
+    {
+        event EventHandler Exited;
+
+        void Kill();
+        bool WaitForExit(int timeMs);
+        Task<bool> WaitForExitAsync(int timeMs);
+        int ExitCode { get; }
+        void Start();
+        StreamWriter StandardInput { get; }
+        StreamReader StandardError { get; }
+        StreamReader StandardOutput { get; }
+        ProcessOptions StartInfo { get; }
+    }
+}