PLIST and delete everything under the @sample'd directory instead of the
directory itself to prevent a warning from pkg_delete(1) trying to
remove a non existing directory and to help preventing left-over files
and directories.
initial port, most things appear to work after fixes to handle new gd,
to get plugins to work, and to fix xlib output).
Set up as a MULTI_PACKAGES so that we can sort further components into
distinct parts later.
