Revision control

++ The WaylandGlobalPrivate module is a module that contains configure
++ features, shared by the modules of the qtwayland repository.
++
++ The actual definition of this module is in src/CMakeLists.txt,
++ because we need to have the qt_find_package calls in a directory scope
++ above src/client and src/compositor.
++
++ This file here mostly exists to make the otherwise empty src/global
++ directory known to git.