@ashfurrow => Auction to pin auth

Builds on #255  - https://github.com/orta/eidolon/commit/bcdbcec4b1c3c241af30bbd5fa7e9eccc6ccf0c4

All PIN based authentication now sends the `auctionID` along with the pin + number. Pleasantly easy to test once I had figured out what I needed to do to get a request through moya. Fixes #254