Remove the 'email' and 'mobile_phone' fields on Person ...

Remove the 'email' and 'mobile_phone' fields on Person and use identities to represent this data instead.

• Migrate data on existing Person objects to Identity objects
• Make the 'is verified' logic only accept certain ID types
• Sync the Person.is_verified and API 'verified' filter logic

greg/api/filters.py

@@ -33,7 +33,7 @@ class PersonFilter(FilterSet):
     def verified_filter(self, queryset, name, value):
         if value is True:
             return queryset.with_verified_identities()
-        elif value is False:
+        if value is False:
             return queryset.without_verified_identities()
         return queryset