add new sharing function

MediaBrowser.Controller/Social/ISharingManager.cs

@@ -0,0 +1,28 @@
+using MediaBrowser.Model.Social;
+using System.Threading.Tasks;
+
+namespace MediaBrowser.Controller.Social
+{
+    public interface ISharingManager
+    {
+        /// <summary>
+        /// Creates the share.
+        /// </summary>
+        /// <param name="itemId">The item identifier.</param>
+        /// <param name="userId">The user identifier.</param>
+        /// <returns>Task&lt;SocialShareInfo&gt;.</returns>
+        Task<SocialShareInfo> CreateShare(string itemId, string userId);
+        /// <summary>
+        /// Gets the share information.
+        /// </summary>
+        /// <param name="id">The identifier.</param>
+        /// <returns>SocialShareInfo.</returns>
+        SocialShareInfo GetShareInfo(string id);
+        /// <summary>
+        /// Deletes the share.
+        /// </summary>
+        /// <param name="id">The identifier.</param>
+        /// <returns>Task.</returns>
+        Task DeleteShare(string id);
+    }
+}