
* Don't evaluate extra nodes if there's no score plugin defined * Fix existing unit test (add no op scoring plugin) * Add unit tests for no score plugin scenario * address review comments * add a test with non-filter, non-scoring extender
* Don't evaluate extra nodes if there's no score plugin defined * Fix existing unit test (add no op scoring plugin) * Add unit tests for no score plugin scenario * address review comments * add a test with non-filter, non-scoring extender