Update meta to make things more informative.
all wx{GTK,widgets,windows,mac,etc}* packages use the wxWindows license.
It’s easier to manage these in one folder. Affected folders from pkgs/development/libraries/: - wxGTK-2.8 - wxGTK-2.9 - wxGTK-3.0 - wxmac These will all go into pkgs/development/libraries/wxwidgets for now.