Add support for Response.authorization field

[ewalk153]

A few of the ActiveMerchant::Billing::Response attributes are based on "magic" from the params and options hash.

Moving

            :test => test?,
            :authorization => response[:numappel].to_s + response[:numtrans].to_s,
            :fraud_review => fraud_review?(response),

from params to options enable these fields to be accessible directly. Authorization field example

Options include moving the fields from params to options, or duplicating them for backwards support where people may already be accessing them via Response.params.
Happy to put up a pull request.

[arambert]

Why not, don't hesitate to submit PRs 😄

[ewalk153]

Thanks!

[ewalk153]

Do you prefer to preserve a copy of the fields in params, or just go ahead and move them?

[arambert]

I'm not sure to perfectly understand what you want to do, but my answer may be enough anyway: preserve backward compatibility

[ewalk153]

That works.