worked on Authorize Request

currently the Authorize is returning a form which auto-posts if ->redirect is called
however, the expectation is that the form should have credit card numbers entered onto it
and POST directly to the Cybersource site - there is not anything to tell the calling function to do this
at the moment

I'm creating this as a PR at this stage as I have reached a level of working -but whether you want to merge at this stage I'm not sure.