Support for SSO on a separate domain

[robbieaverill]

Hi team,

I've been told that it's possible for us to have our provisioning and credentials API on one domain while having our SSO endpoint on another domain.

It doesn't look possible to test this setup using Grafton, because:

• Grafton doesn't have an argument for the SSO domain
• If I run Grafton on my SSO domain instead of my API domain it doesn't run the SSO test, since the provisioning test fails

Ideally I could do this:

• grafton test ... --exclude sso http://api.myservice.com/manifold
• grafton test ... --include sso http://auth.myservice.com/manifold

I also chucked a cheeky feature request in there for the --include argument, can be ignored for this issue, but it is very difficult to isolate specific tests using the --exclude flag, especially when tests are co-dependent.