Refactoring directory path for UI resource

Wox.Core/Resource/Resource.cs

@@ -0,0 +1,15 @@
+using System.IO;
+using System.Windows;
+using Wox.Infrastructure;
+
+namespace Wox.Core.UI
+{
+    public abstract class Resource
+    {
+        public string DirectoryName { get; protected set; }
+
+        protected string DirectoryPath => Path.Combine(WoxDirectroy.Executable, DirectoryName);
+
+        public abstract ResourceDictionary GetResourceDictionary();
+    }
+}