Add IExclusivePlugin

Wox.Core/Plugin/QueryDispatcher/ExclusiveQueryDispatcher.cs

@@ -0,0 +1,30 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading;
+using Wox.Core.Exception;
+using Wox.Core.UserSettings;
+using Wox.Infrastructure.Logger;
+using Wox.Plugin;
+
+namespace Wox.Core.Plugin.QueryDispatcher
+{
+    public class ExclusiveQueryDispatcher : BaseQueryDispatcher
+    {
+        protected override List<PluginPair> GetPlugins(Query query)
+        {
+            List<PluginPair> pluginPairs = new List<PluginPair>();
+            var exclusivePluginPair = PluginManager.GetExclusivePlugin(query) ??
+                                      PluginManager.GetActionKeywordPlugin(query);
+            if (exclusivePluginPair != null)
+            {
+                pluginPairs.Add(exclusivePluginPair);
+            }
+
+            return pluginPairs;
+        }
+
+
+    
+    }
+}