Use Unidecoder instead of ChineseToPinYin

// Please do not use the binary version on NuGet since there are some issues with the data table

Wox.Infrastructure/Unidecoder.cs

@@ -0,0 +1,37 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Wox.Infrastructure
+{
+    public static partial class Unidecoder
+    {
+        public static string Unidecode(this string self)
+        {
+            if (string.IsNullOrEmpty(self))
+                return "";
+
+            if (self.All(x => x < 128))
+                return self;
+
+            return String.Join("", self.Select(c => c.Unidecode()).ToArray());
+        }
+
+        public static string Unidecode(this char c)
+        {
+            string result;
+            if (c < 128)
+                return char.ToString(c);
+
+            int high = c >> 8;
+            int low = c & 0xff;
+            string[] t;
+
+            if (characters.TryGetValue(high, out t))
+                return t[low];
+
+            return string.Empty;
+        }
+    }
+}