Allow to enable multiple br_address_fields in the same form

Problem/Motivation

When you add more than 1 br_address_field to the same form, it gets lost when it returns the ZIP code results, because the form is replaced (always the first one),
i.e,
when you have 2 br_address_fields in the same form and change the second one, the return changes the first br_address_field completely and ignores the second one completely.

Steps to reproduce

Add two br_address_field and the same form and add the cep to second one.

Proposed resolution

Instead replace the entire br_address_field group, I've used the ajax InvokeCommand to only fill the fields and
based on parent field that trigger it.