Add QuaverChartConverter.

Assets/Extensions/Quaver.API/Enums/GameMode.cs

@@ -0,0 +1,21 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. 
+ * Copyright (c) 2017-2018 Swan & The Quaver Team <support@quavergame.com>.
+*/
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Quaver.API.Enums
+{
+    public enum GameMode
+    {
+        Keys4 = 1,
+        Keys7 = 2
+    }
+}