Add fast mode

HearingTestGUI.py

@@ -162,6 +162,9 @@ class TestWindow(QMainWindow):
             else:
                 self.log.hide()
             return
+        if event.key() == Qt.Qt.Key_F:
+            HearingTest.max_response_time = 0.01
+            return
         if not self.test_running:
             if event.key() == Qt.Qt.Key_Escape:
                 self.close()