Move some user settings to its own dll (cmd,folder plugin and etc)

Wox.Core/UserSettings/HttpProxy.cs

@@ -0,0 +1,43 @@
+using Wox.Plugin;
+
+namespace Wox.Core.UserSettings
+{
+    public class HttpProxy : IHttpProxy
+    {
+        private static readonly HttpProxy instance = new HttpProxy();
+
+        private HttpProxy()
+        {
+        }
+
+        public static HttpProxy Instance
+        {
+            get { return instance; }
+        }
+
+        public bool Enabled
+        {
+            get { return UserSettingStorage.Instance.ProxyEnabled; }
+        }
+
+        public string Server
+        {
+            get { return UserSettingStorage.Instance.ProxyServer; }
+        }
+
+        public int Port
+        {
+            get { return UserSettingStorage.Instance.ProxyPort; }
+        }
+
+        public string UserName
+        {
+            get { return UserSettingStorage.Instance.ProxyUserName; }
+        }
+
+        public string Password
+        {
+            get { return UserSettingStorage.Instance.ProxyPassword; }
+        }
+    }
+}