wxMarkupText allows to easily support markup in the controls that we draw ourselves so use it in wxGenericStaticText to have a possibility to use markup on all platforms, even those where there is no native markup support in wxStaticText itself. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@67067 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775