getContact method
Fetches all fields for given contact
Implementation
static Future<Contact> getContact(String id,
{bool useHighResolutionPhotos = true}) async {
final contacts = await _get(
id: id,
withDetails: true,
withPhotos: true,
useHighResolutionPhotos: useHighResolutionPhotos);
if (contacts.isEmpty) return null;
return contacts.first;
}