Backport new entity block binding binding

[getdave]

Backport of WordPress/gutenberg#71630

Trac ticket: https://core.trac.wordpress.org/ticket/64074

Please note that we are aiming to remove the need for this binding as part of WordPress/gutenberg#72165.

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[github-actions]

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[mukeshpanchal27]

The get_permalink() return either string or bool false why we check is_wp_error here?

[getdave]

That's just an error on my part which we need to fix.

[leoseekoon]

Thanks Changes look good
{{{
#!html

}}}.

[getdave]

As we have now refactored the implementation to use the existing Post and Term bindings there is no need for a backport. Closing this one out.

cc @ockham