Two tests for scoped roles management resources

Hi Brian,

I didn't have a lot of time lately for RBAC work (6.1.1 fun), but now that I see the scoped roles work in your main RBAC branch, I figured I will share the two tests for this that I wrote some time back. They excersise the management resources for host-scoped and server-group-scoped roles.

I have some integration tests in progress and will submit them later, hopefully sometime next week.

Thanks!

LT