Add GPL modules

MediaBrowser.Controller/Resolvers/IResolverIgnoreRule.cs

@@ -0,0 +1,15 @@
+
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.IO;
+using MediaBrowser.Model.IO;
+
+namespace MediaBrowser.Controller.Resolvers
+{
+    /// <summary>
+    /// Provides a base "rule" that anyone can use to have paths ignored by the resolver
+    /// </summary>
+    public interface IResolverIgnoreRule
+    {
+        bool ShouldIgnore(FileSystemMetadata fileInfo, BaseItem parent);
+    }
+}