Change naming from Derp -> OneSix until the new instance type supports legacy

logic/OneSixVersionBuilder.h

@@ -0,0 +1,53 @@
+/* Copyright 2013 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <QString>
+
+class OneSixVersion;
+class OneSixInstance;
+class QWidget;
+class QJsonObject;
+class QFileInfo;
+
+class OneSixVersionBuilder
+{
+	OneSixVersionBuilder();
+public:
+	static bool build(OneSixVersion *version, OneSixInstance *instance, QWidget *widgetParent);
+	static bool read(OneSixVersion *version, const QJsonObject &obj);
+
+private:
+	OneSixVersion *m_version;
+	OneSixInstance *m_instance;
+	QWidget *m_widgetParent;
+
+	enum Type
+	{
+		Override,
+		Add,
+		Remove
+	};
+
+	bool build();
+	bool read(const QJsonObject &obj);
+
+	void clear();
+	bool apply(const QJsonObject &object);
+	bool applyLibrary(const QJsonObject &lib, const Type type);
+
+	bool read(const QFileInfo &fileInfo, QJsonObject *out);
+};