Better name

Timeit.Stopwatch -> Stopwatch.Normal
Timeit.StopwatchDebug -> Stopwatch.Debug

Wox.Infrastructure/Stopwatch.cs

@@ -0,0 +1,44 @@
+using System;
+using System.Diagnostics;
+using Wox.Infrastructure.Logger;
+
+namespace Wox.Infrastructure
+{
+    public static class Stopwatch
+    {
+        /// <summary>
+        /// This stopwatch will appear only in Debug mode
+        /// </summary>
+        public static void Debug(string name, Action action)
+        {
+#if DEBUG
+            Normal(name, action);
+#else
+            action();
+#endif
+        }
+
+        [Conditional("DEBUG")]
+        private static void WriteTimeInfo(string name, long milliseconds)
+        {
+            string info = $"{name} : {milliseconds}ms";
+            System.Diagnostics.Debug.WriteLine(info);
+            Log.Info(info);
+        }
+
+        /// <summary>
+        /// This stopwatch will also appear only in Debug mode
+        /// </summary>
+        public static long Normal(string name, Action action)
+        {
+            var stopWatch = new System.Diagnostics.Stopwatch();
+            stopWatch.Start();
+            action();
+            stopWatch.Stop();
+            var milliseconds = stopWatch.ElapsedMilliseconds;
+            WriteTimeInfo(name, milliseconds);
+            return milliseconds;
+        }
+
+    }
+}