We must offset the coordinate system before scaling it, otherwise incorrect
offset is used.
Add a test for drawing translated/scaled bitmaps to the drawing sample.
See #11097.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@64463 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775