add test for extquotes

* change url generation in extquotes
* fix bug with missing derivate values

sources/awesomewidgets/extquotes.h

@@ -61,6 +61,7 @@ private:
     QUrl m_url;
     bool isRunning = false;
     Ui::ExtQuotes *ui = nullptr;
+    void initUrl();
     void translate();
     // properties
     QString m_ticker = QString("EURUSD=X");