Add GPL modules

MediaBrowser.Controller/Persistence/IUserRepository.cs

@@ -0,0 +1,29 @@
+using MediaBrowser.Controller.Entities;
+using System.Collections.Generic;
+using System.Threading;
+
+namespace MediaBrowser.Controller.Persistence
+{
+    /// <summary>
+    /// Provides an interface to implement a User repository
+    /// </summary>
+    public interface IUserRepository : IRepository
+    {
+        /// <summary>
+        /// Deletes the user.
+        /// </summary>
+        /// <param name="user">The user.</param>
+        /// <param name="cancellationToken">The cancellation token.</param>
+        /// <returns>Task.</returns>
+        void DeleteUser(User user);
+
+        /// <summary>
+        /// Retrieves all users.
+        /// </summary>
+        /// <returns>IEnumerable{User}.</returns>
+        List<User> RetrieveAllUsers();
+
+        void CreateUser(User user);
+        void UpdateUser(User user);
+    }
+}