added setting quality of scaling for ScaledBitmaps


git-svn-id: http://svn.wxwidgets.org/svn/wx/wxPython@75795 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
fixed an issue with unneccesarily keeping a MemoryDC around for the hit test colr selecting.

Thanks to Wouter Meertens for the patch



git-svn-id: http://svn.wxwidgets.org/svn/wx/wxPython@75805 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775