[Feature Request] Block Transform Capability for ACF Blocks

As a feature request, I think it would be valuable to have the option to create a link between two blocks that have similar data, this way one could use the Gutenburg "Transform" feature to swap block templates

Example of the paragraph block, which can tranform into a heading, quote, etc:

You could explicitly define support in the block registration like so:

acf_register_block_type([
    'name'       => 'my-first-block',
    ...
    'transform   => [ 'acf/my-second-block', ],
 ]);

Alternatively, if you registered block field groups for multiple block locations (or combinator, not and):

'location' => array(
    array(
        array(
            'param' => 'block',
            'operator' => '==',
            'value' => 'acf/my-first-block',
        ),
    ),
    array(
        array(
            'param' => 'block',
            'operator' => '==',
            'value' => 'acf/my-second-block',
        ),
    ),
),

You could ensure that the two blocks contain the same data, and thus would be compatible.

Start by reviewing the acf_register_block_type API and Gutenberg's Transform feature described in the issue. Determine how compatible ACF blocks should declare or derive transforms, and define completion around two registered blocks being able to swap templates while preserving their shared data.