Native WP actions for MetaBox

With Meta Box’s popularity rising, I think it would be beneficial for Pinegrow to have native support for it rather than relying on get_post_meta() or custom functions to call Meta Box’s own wrappers.

It seems that the action would be easy enough to create and it could help tick a box for people evaluating Pinegrow and would be some low hanging fruit marketing-wise.

It seems to me that an action for rwmb_meta() would take care of most use cases.

The other functions like get_field_settings(), get_registry(), and get_object_fields() would be nice to have but they aren’t what most of us need on a daily basis.