Auction - make registration deadline available for registrars over WHOIS and REST-WHOIS

[vohmar]

Currently there is no way to query the auctioned domain's registration deadline to verify how critical is the registration application in case registrar has not automated the registration process.

I see two option shere:
* domain:check - add the registration deadline in the reason description

• whois - return current registration deadline for all auctioned doimains with waiting for payent or waiting for registration statuses.

[artur-intech]

reason element in domain:check can only be returned when domain is unavailable, but a domain in pending_registration state is considered available.

[vohmar]

correct - that leaves domain:check option out and we have only whois to use in this case

[vohmar]

to make the solution consistent with regular whois output for registered domains it might be a good idea to use term delete and return registration due +1 to mark the date domain is back in auction if not paid or registered

[yulgolem]

so the main question is to:

1. Modify registry WhoisRecord to contain the auctioned domain's registration deadline
2. Make sure that this record contains actual deadline from the auction
3. Make sure that this record is available via whois/restwhois outputs

the deadline might be:

1. invoice due date if invoice is not paid yet
2. registration due (+1?) if invoice is paid

[yulgolem]

The plan is:

1. Add a field to Auction model in registry.
2. Fill this field with data during usual auction/registry integration in Api::V1::AuctionsController#update
3. update whois data via #update_whois_from_auction
4. show this data in whois/restwhois