winrt: Disable camera deactivation automation in debug mode

Camera control reacts to an application becoming inactive and turns off
the camera. However, when debugging or watching internals inside an IDE
this feature breaks the state of the application as the IDE gets focus
and hence camera is turned off.

Change-Id: I6f80476592c0faa32e9da11401f699c6211d226a
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>

src/plugins/winrt/qwinrtcameracontrol.cpp

@@ -823,6 +823,9 @@ void QWinRTCameraControl::onBufferRequested()
 void QWinRTCameraControl::onApplicationStateChanged(Qt::ApplicationState state)
 {
     qCDebug(lcMMCamera) << __FUNCTION__ << state;
+#ifdef _DEBUG
+    return;
+#else // !_DEBUG
     Q_D(QWinRTCameraControl);
     static QCamera::State savedState = d->state;
     switch (state) {
@@ -838,6 +841,7 @@ void QWinRTCameraControl::onApplicationStateChanged(Qt::ApplicationState state)
     default:
         break;
     }
+#endif // _DEBUG
 }
 
 HRESULT QWinRTCameraControl::initialize()