Possible false positive in ResponseValidationRFC5731

[gbrodman]

ResponseValidationRFC5731 checks that the EPP status value "active" cannot be combined with any other EPP status values, which is valid according to RFC 5731.

However, there are additional status values (according to https://www.iana.org/assignments/rdap-json-values/rdap-json-values.xhtml) that correspond to the domain grace period statuses outlined in RFC 3915 and may be combined with the "active" EPP status value. The easiest ones to find and test are the "add period" and "auto renew period" status values.

For domains that are active and in one of these grace periods, I believe the RDAP output should in fact include both "active" and e.g. "add period", and currently ResponseValidationRFC5731 does not allow this. Hopefully this makes sense, thanks.

[anewton1998]

I think this makes sense. We'll look at making this change.

[dev-gto]

RFC 8056, item 2, also has a mapping to these RDAP statuses, which might be helpful.