add sip bindings to QgsCredentialsNone (followup 42bc9387)

python/core/qgscredentials.sip

@@ -56,6 +56,30 @@ class QgsCredentials
 /**
 \brief Default implementation of credentials interface
 
+This class doesn't prompt or return credentials
+*/
+class QgsCredentialsNone : QObject, QgsCredentials
+{
+%TypeHeaderCode
+#include <qgscredentials.h>
+%End
+
+  public:
+    QgsCredentialsNone();
+
+  signals:
+    //! signals that object will be destroyed and shouldn't be used anymore
+    void destroyed();
+
+  protected:
+    virtual bool request( const QString& realm, QString &username /In,Out/, QString &password /In,Out/, const QString& message = QString::null );
+    virtual bool requestMasterPassword( QString &password /In,Out/, bool stored = false );
+};
+
+
+/**
+\brief Implementation of credentials interface for the console
+
 This class outputs message to the standard output and retrieves input from
 standard input. Therefore it won't be the right choice for apps without
 GUI.