New control: taxonomy

[slaFFik]

Give ability to display a select box of registered taxonomies, that are associated with the current CPT.

Use case: registered custom taxonomy, but made a hidden UI to select terms for this CPT. Each section in ButterBean (like, repeatable data) should have own term or particular (the same or different) taxonomy. Handy for galleries etc.

Possible code:

$manager->register_control(
    'bbe_taxonomy_a',
    array(
        'type'        => 'taxonomy',
        'section'     => 'section_name',
        'taxonomy'    => 'some_taxonomy',
        'label'       => __( 'Related Taxonomy', 'ilm' ),
        'description' => __( 'Some Description', 'text-domain' )
    )
);

Display in a dropdown all terms under some_taxonomy taxonomy.