Initial proposal to differentiate sam only and sat only tests

Now tests can use decorators to run/skip tests basead on server modes:
- runIf('sam') - runs only on sam server
- runIf('sat') - runs only on sat server
- no decoractor - runs on all server modes
I think you want to say "This test will not run..."? Assuming ``project == 'sam'`` but ``mode == 'sat'``, then the test will not run.