gazebo11: depend on qwt-qt5 (#1559)
gazebo11: depend on qwt-qt5 (#1559)

* gazebo11: revision bump for qwt-qt5
* update  bottle.

Co-authored-by: OSRF Build Bot <e7ccba6b2e9a009fc519e029a919f6da63312f55@osrfoundation.org>
scpeters/homebrew-simulation,osrf/homebrew-simulation