a lot of this functionality is reused from dnd. basic selection owner
management in x11 and slapping bytes down a pipe to the wl client;
a bit laggy when pasting to wl clients sometimes, need to spend more time
debugging that...
#Kansas
still a little rough, but the basics are functional. works by showing
the x11 compositor selection window, which has rects to exclude geometries
of xwl clients, for getting x11 xdnd events, and then manually sending
all the related client messages in order to inform the x11 client that
enlightenment is, in fact, an extremely credible xdnd drop site and not
a rogue compositor which will mangle/destroy the dnd data.
still render crashes after the operation completes, so possibly not the
most useful thing to be using now
Mike Blumenkrantz