[packagechooser] Add screenshots for example

src/modules/packagechooser/CMakeLists.txt

@@ -7,6 +7,8 @@ calamares_add_plugin( packagechooser
         PackageChooserPage.cpp
         PackageChooserViewStep.cpp
         PackageModel.cpp
+    RESOURCES
+        packagechooser.qrc
     UI
         page_package.ui
     LINK_PRIVATE_LIBRARIES

src/modules/packagechooser/PackageChooserPage.cpp

@@ -33,6 +33,9 @@ PackageChooserPage::PackageChooserPage( PackageChooserMode mode, QWidget* parent
                       tr( "Package Selection" ),
                       tr( "Please pick a product from the list. The selected product will be installed." ) )
 {
+    m_introduction.screenshot = QPixmap( QStringLiteral( ":/images/no-selection.png" ) );
+    cDebug() << m_introduction.screenshot;
+
     ui->setupUi( this );
     CALAMARES_RETRANSLATE( updateLabels(); )
 

src/modules/packagechooser/packagechooser.qrc

@@ -0,0 +1,7 @@
+<RCC>
+    <qresource prefix="/">
+        <file>images/no-selection.png</file>
+        <file>images/kde.png</file>
+        <file>images/gnome.png</file>
+    </qresource>
+</RCC>