EDS testing: allow EDS to add additional phone parameters

EDS testing: allow EDS to add additional phone parameters

When EDS is compiled with libphonenumber support, it automatically
computes a normalized E.164 representation of each phone number and
returns it as an additional X-EVOLUTION-E164 parameter.

This broke the strict phone_fd.equals check in set-phones, because it
compared against a PhoneFieldDetails without that parameter. Now the
test only looks for a phone number with "1234" as value and checks for
the expected type after returning from the event loop.