moved resolvers to implementations, trimmed nuget package a bit

MediaBrowser.Server.Implementations/Library/CoreResolutionIgnoreRule.cs

@@ -0,0 +1,55 @@
+using MediaBrowser.Controller.Library;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace MediaBrowser.Server.Implementations.Library
+{
+    /// <summary>
+    /// Provides the core resolver ignore rules
+    /// </summary>
+    public class CoreResolutionIgnoreRule : IResolverIgnoreRule
+    {
+        /// <summary>
+        /// Any folder named in this list will be ignored - can be added to at runtime for extensibility
+        /// </summary>
+        private static readonly List<string> IgnoreFolders = new List<string>
+        {
+            "trailers",
+            "metadata",
+            "certificate",
+            "backup",
+            "ps3_update",
+            "ps3_vprm",
+            "adv_obj",
+            "extrafanart"
+        };
+
+        /// <summary>
+        /// Shoulds the ignore.
+        /// </summary>
+        /// <param name="args">The args.</param>
+        /// <returns><c>true</c> if XXXX, <c>false</c> otherwise</returns>
+        public bool ShouldIgnore(ItemResolveArgs args)
+        {
+            // Ignore hidden files and folders
+            if (args.IsHidden)
+            {
+                return true;
+            }
+
+            if (args.IsDirectory)
+            {
+                var filename = args.FileInfo.cFileName;
+
+                // Ignore any folders in our list
+                if (IgnoreFolders.Contains(filename, StringComparer.OrdinalIgnoreCase))
+                {
+                    return true;
+                }
+            }
+
+            return false;
+        }
+    }
+}