Package dbus-launch without X11 support

The dbus-launch we currently use is from the dbus-x11 package, while it works it is very slow to start since it tries to connect to an X server. After one minute the X connection times out an dbus-launch does its thing anyway.

The dbus-launch can be compiled without X11 support to skip that timeout. Maybe we should provide a dbus-tools or dbus-wayland package with the same tools without X11 support?