This restructures and renames all Puppet definitions so they are
usable as a module named "cfgfile", supporting the Puppet auto-
loader, instead of being part of the old "nsc-puppet-utils" module.

Lots of things get new names, so this change is NOT backwards-
compatbile.  The renamings done are:

    comment_lines          cfgfile::comment_lines
    config_option          cfgfile::config_option
    rh_sysconfig           cfgfile::redhat::sysconfig
    gentoo_conf            cfgfile::gentoo::conf_option
    portage_keyword        cfgfile::gentoo::portage_keyword
    portage_makeconf       cfgfile::gentoo::portage_makeconf
    portage_useflags       cfgfile::gentoo::portage_useflags
    xinetd_srv_option      cfgfile::xinetd::service_option