Added missing includes for Qt to prepare removal of several large includes in Interfaces

FileOBJ.hh

@@ -47,10 +47,14 @@
 *                                                                            *
 \*===========================================================================*/
 
-#ifndef FILEOBJPLUGIN_HH
-#define FILEOBJPLUGIN_HH
+#pragma once
 
 #include <QObject>
+#include <QCheckBox>
+#include <QLabel>
+#include <QSpinBox>
+#include <QPushButton>
+#include <QComboBox>
 
 #include <OpenFlipper/common/Types.hh>
 #include <OpenFlipper/BasePlugin/BaseInterface.hh>
@@ -261,4 +265,3 @@ class FileOBJPlugin : public QObject, BaseInterface, FileInterface, LoadSaveInte
 #endif
 
 
-#endif //FILEOBJPLUGIN_HH