Fix krazy warnings about includes

examples/basic/ExampleDockableWidget.cpp

@@ -21,7 +21,10 @@
 #include "ExampleDockableWidget.h"
 
 #include <QDebug>
-#include <QtWidgets>
+#include <QVBoxLayout>
+#include <QGroupBox>
+#include <QRadioButton>
+#include <QPushButton>
 
 MyWidget::MyWidget()
     : QWidget()

examples/basic/ExampleDockableWidget.h

@@ -21,7 +21,7 @@
 #ifndef EXAMPLEDOCKABLEWIDGET_H
 #define EXAMPLEDOCKABLEWIDGET_H
 
-#include <QtWidgets>
+#include <QWidget>
 
 class MyWidget : public QWidget
 {

examples/basic/main.cpp

@@ -24,7 +24,13 @@
 #include "LayoutSaver.h"
 
 #include <QMouseEvent>
-#include <QtWidgets>
+#include <QTextEdit>
+#include <QMenu>
+#include <QAction>
+#include <QStyleFactory>
+#include <QApplication>
+#include <QDebug>
+#include <QMenuBar>
 
 using namespace KDDockWidgets;