Returning Bytes and soapui_context on every TestStep

Hi,

Most of these changes seem reasonable to me, I'll try to make sure we look at getting them into the next version. One thing that might be a problem is the Status parameter, as other Runners use it as a success/fail boolean, we may want to keep it that way for consistency. I don't see any reason that we couldn't just add it as a new field though.

Regards,
Dain
SmartBear Software