NetApp::Filer::License -- OO Class for representing NetApp Filer licenses

    use NetApp::Filer;

    my $filer = NetApp::Filer->new({ ... });

    my @licenses	= $filer->get_licenses;

    $filer->add_license( $code );

    $filer->delete_license( 'cifs' );

    my $license		= $filer->get_license( 'nfs' );

This class is used to encapsulate the NetApp Filer license information.

Returns the name of the service for the license.

Returns either 'site' or 'node', depending on whether or not the license was in fact a site license.

Returns the code for the license

Returns a false value if the license is not expired, and if it is expired, it returns the data the license expired, for example: "26 Jun 2008"