move back desktop files

add widget configuration
append plugin slots
rewrite KF5 and DE to use ExtUpgrade class
some fixes

sources/awesome-widget-kf5/plugin/awtooltip.h

@@ -34,7 +34,7 @@ public:
               QMap<QString, QVariant> m_settings = QMap<QString, QVariant>());
     ~AWToolTip();
 
-    Q_INVOKABLE QPixmap image();
+    QPixmap image();
     void setData(const QString source, const float value,
                  const bool ac = true);