Delegation

• list of methods to delegate handles => qw/list of methods/
• regex of methods handles => qr/^[^_/] (non-private methods)
• hash mapping method names:

handles => {
    my_foo => 'foo',
    my_bar => 'bar',
},

• Then $consumer->my_foo is equivalent to $consumer->provider->foo
• (Delegation from non-Moose classes possible.)