Add qmodmaster and move udp app to applications

Applications/Qt-application_for_UDP_broadcast/about.cpp

@@ -0,0 +1,15 @@
+#include "about.h"
+#include "ui_about.h"
+
+About::About(QWidget *parent) :
+    QDialog(parent),
+    ui(new Ui::About)
+{
+    ui->setupUi(this);
+    ui->lblVersion->setText(ui->lblVersion->text() + " " + __DATE__ + " " + __TIME__);
+}
+
+About::~About()
+{
+    delete ui;
+}