Rename Wox.Plugin.System to Wox.Plugin.SystemPlugins

Finish moving ProgramSetting into featureBox

Wox.Plugin.SystemPlugins/BaseSystemPlugin.cs

@@ -0,0 +1,50 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Wox.Plugin.SystemPlugins
+{
+    public abstract class BaseSystemPlugin :ISystemPlugin
+    {
+        protected abstract List<Result> QueryInternal(Query query);
+        protected abstract void InitInternal(PluginInitContext context);
+
+        public List<Result> Query(Query query)
+        {
+            if (string.IsNullOrEmpty(query.RawQuery)) return new List<Result>();
+            return QueryInternal(query);
+        }
+
+        public void Init(PluginInitContext context)
+        {
+            InitInternal(context);
+        }
+
+        public virtual string Name
+        {
+            get
+            {
+                return "System workflow";
+            }
+        }
+
+        public virtual string Description
+        {
+            get
+            {
+                return "System workflow";
+            }
+        }
+
+        public virtual string IcoPath
+        {
+            get
+            {
+                return null;
+            }
+        }
+
+        public string PluginDirectory { get; set; }
+    }
+}