Ability to customize the names of AddressComplete fields

## Context

All input field labels are pre-set and not modifiable currently. Perhaps we could consider having a default but also the flexibility to change the fields as needed.

**https://cds-snc.freshdesk.com/a/tickets/30115**

> Is it possible to customize the names of the different fields (Street address, City Town or Community, etc.)

> Is it possible to customize the Hint Text that appears following “Street address”?

Start by locating the AddressComplete field definitions and the code that renders their labels and hint text. Keep the existing defaults, while allowing each field's label and hint to be customized; done means both default and customized text appear correctly in the form.

Written by the indexing model from the issue text.