Added toolButton for lunchmealplugin

plugins/lunchmealplugin/lunchmealplugin.cpp

@@ -1,9 +1,21 @@
 #include "lunchmealplugin.h"
 
 #include <QDebug>
+#include <QBoxLayout>
+
+#include "mainwindow.h"
+#include "stripswidget.h"
+
+#include "lunchmealwidget.h"
 
 LunchMealPlugin::LunchMealPlugin(QObject *parent) :
     ZeiterfassungPlugin(parent)
 {
     qDebug() << "called";
 }
+
+void LunchMealPlugin::attachTo(MainWindow &mainWindow)
+{
+    for(auto stripsWidget : mainWindow.stripsWidgets())
+        stripsWidget->headerLayout()->addWidget(new LunchMealWidget(*stripsWidget));
+}