NE A21: deQtization begins

- added FfsBuilder code and UI, but reconstruction routines for volumes,
files and sections are still not ready
- FfsOps moved to common
- QVector and QPair aren't used anymore, replaces with std::vector and
std::pair
- common classes are now independent from QObject
- next step is to replace QString with CBString from bstrlib

common/ffsops.h

@@ -0,0 +1,51 @@
+/* fssops.h
+
+Copyright (c) 2015, Nikolaj Schlej. All rights reserved.
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution.  The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+*/
+
+#ifndef __FFSOPS_H__
+#define __FFSOPS_H__
+
+#include <vector>
+
+#include <QObject>
+#include <QByteArray>
+#include <QString>
+#include <QModelIndex>
+
+#include "basetypes.h"
+#include "treemodel.h"
+#include "ffs.h"
+#include "utility.h"
+
+class FfsOperations
+{
+public:
+    explicit FfsOperations(TreeModel * treeModel);
+    ~FfsOperations();
+
+    std::vector<std::pair<QString, QModelIndex> > getMessages() const;
+    void clearMessages();
+
+    STATUS extract(const QModelIndex & index, QString & name, QByteArray & extracted, const UINT8 mode);
+    STATUS replace(const QModelIndex & index, const QString & data, const UINT8 mode);
+    
+    STATUS remove(const QModelIndex & index);
+    STATUS rebuild(const QModelIndex & index);
+
+private:
+    TreeModel* model;
+    std::vector<std::pair<QString, QModelIndex> > messagesVector;
+
+    void msg(const QString & message, const QModelIndex &index = QModelIndex());
+};
+
+#endif