add QTVulkan example

example/Vulkan/QtVulkanMainWindow.cpp

@@ -0,0 +1,21 @@
+#include"QtVulkanMainWindow.h"
+
+MainWindow::MainWindow(QtVulkanWindow *w):m_window(w)
+{
+    this->setWindowTitle(QString("Vulkan and QT"));
+
+    QWidget *wrapper = QWidget::createWindowContainer(w);
+    QVBoxLayout *layout = new QVBoxLayout;
+
+    m_info=new QPlainTextEdit;
+    m_info->setReadOnly(true);
+
+    layout->addWidget(m_info,1);
+    layout->addWidget(wrapper,5);
+    setLayout(layout);
+}
+
+void MainWindow::onVulkanInfoReceived(const QString &text)
+{
+    m_info->setPlainText(text);
+}