Fixes and refactorings on addresses:
- Add getLines method on AddressInterface. It should be used to get the formatted address (getFormattedAddress in GeoManager should be used only to prepare an address before saving it).
- Add getFieldsLayout method on AddressFields document, returning the result of getFieldsLayoutData if it is not null or an auto-generated layout instead.
- In Address document, automatically fill the __lines value (returned by getLines).
- Some fixes in ManageAddress block, front office address form and order process address refresh.