qtvcp -qtaxis: fix step toolbar button

somehow this was never finished in the toolbar libray either

Author: c-morley

share/qtvcp/screens/qtaxis/qtaxis_handler.py

@@ -102,6 +102,7 @@ def initialized__(self):
         TOOLBAR.configure_action(self.w.actionOpen, 'load')
         TOOLBAR.configure_action(self.w.actionReload, 'Reload')
         TOOLBAR.configure_action(self.w.actionRun, 'run')
+        TOOLBAR.configure_action(self.w.actionStep, 'step')
         TOOLBAR.configure_action(self.w.actionPause, 'pause')
         TOOLBAR.configure_action(self.w.actionStop, 'abort')
         TOOLBAR.configure_action(self.w.actionSkip, 'block_delete')