Add simple near 1 line description of test in annotation

[sspeiche]

Currently you need to find the source and then read it to understand. It would be good to provide a short description of what the test does or how the requirement is being tested, the testing approach.

Makes the most sense to put in SpecTest annotations, like:
approach = "Provide some simple RDF on POST, check for 201 response code and Location header."

[sspeiche]

I believe we can use a single annotation for both automated vs name, I'm proposing we'd use annotation like:
steps = {"Run server", "run client"}

Then for automated we could do something similar, using same annotation. If needed.