Bug 10760: Alternate Address: Make street number and street type editable

Bug 10760: Alternate Address: Make street number and street type editable

Table 'borrowers' contain columns B_streetnumber and B_streettype.
This patch makes them editable for alternate address.

To test:
- Apply patch
- Edit a patron's details
- Verify that in edit mode for Alternate address, the fields 'street type' and 'street number' appear
  and follow the settings in sysprefs AddressFormat, BorrowerMandatoryField, BorrowerUnwantedField
- Verify that the values are saved correctly.

Note: A second patch will follow to manage the display of street number and street type
Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>