Retrieves the current version of an address by CAF ID

public AddressView GetAddress( string apiKey, int cafID )

An AddressView object which contains the requested CAF ID and the Address representing the
current version of the specified address.

Note that the CAF ID of the returned Address object is the CAF ID for the current version of the address,
and may therefore be a higher number than the requested CAF ID.
If the address is not found, the result is a null AddressView object.