Convert FSAL_CEPH from export object to namespace object

Signed-off-by: Frank S. Filz <ffilzlnx@mindspring.com>
Convert FSAL_ZFS from export object to namespace object

Signed-off-by: Frank S. Filz <ffilzlnx@mindspring.com>
Convert FSAL_HPSS from export object to namespace object

Signed-off-by: Frank S. Filz <ffilzlnx@mindspring.com>
Convert FSAL_PT from export object to namespace object

Signed-off-by: Frank S. Filz <ffilzlnx@mindspring.com>