Add everything plugin context menu and add settings in Url plugin (#2299)

1. Add useful context menu items in everything
2. Add settings in Url plugin, can set browser path

* let url plugin support multi Languages

Plugins/Wox.Plugin.Url/Settings.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Wox.Plugin.Url
+{
+    public class Settings
+    {
+        public string BrowserPath { get; set; }
+    }
+}