Add shared commands for plugins to use

Wox.Plugin/SharedCommands/SearchWeb.cs

@@ -0,0 +1,27 @@
+using System;
+using System.Diagnostics;
+using System.IO;
+using System.Linq;
+
+namespace Wox.Plugin.WebSearch.Commands
+{
+    internal static class SearchWeb
+    {
+        /// <summary> Opens search in a new browser. If no browser path is passed in then Chrome is used. 
+        /// Leave browser path blank to use Chrome.
+        /// </summary>
+        internal static void NewBrowserWindow(this string url, string browserPath)
+        {
+            var browserExecutableName = browserPath?
+                                        .Split(new[] { Path.DirectorySeparatorChar }, StringSplitOptions.None)
+                                        .Last();
+
+            var browser = string.IsNullOrEmpty(browserExecutableName) ? "chrome" : browserPath;
+
+            // Internet Explorer will open url in new browser window, and does not take the --new-window parameter
+            var browserArguements = browserExecutableName == "iexplore.exe" ? url : "--new-window " + url;
+
+            Process.Start(browser, browserArguements);
+        }
+    }
+}