Update NN Iris test to run with recent changes, also add new tests for distribution and scale.
Update NN Iris test to run with recent changes, also add new tests for distribution and scale.

calvingit21/h2o-2,100star/h2o,calvingit21/h2o-2,calvingit21/h2o-2,eg-zhang/h2o-2,h2oai/h2o,rowhit/h2o-2,h2oai/h2o,rowhit/h2o-2,rowhit/h2o-2,h2oai/h2o-2,100star/h2o,eg-zhang/h2o-2,h2oai/h2o,rowhit/h2o-2,111t8e/h2o-2,111t8e/h2o-2,vbelakov/h2o,eg-zhang/h2o-2,h2oai/h2o,vbelakov/h2o,h2oai/h2o,h2oai/h2o-2,vbelakov/h2o,h2oai/h2o,calvingit21/h2o-2,calvingit21/h2o-2,100star/h2o,elkingtonmcb/h2o-2,111t8e/h2o-2,h2oai/h2o-2,h2oai/h2o,h2oai/h2o,h2oai/h2o,100star/h2o,111t8e/h2o-2,elkingtonmcb/h2o-2,rowhit/h2o-2,100star/h2o,h2oai/h2o-2,111t8e/h2o-2,vbelakov/h2o,calvingit21/h2o-2,eg-zhang/h2o-2,vbelakov/h2o,100star/h2o,eg-zhang/h2o-2,elkingtonmcb/h2o-2,eg-zhang/h2o-2,rowhit/h2o-2,rowhit/h2o-2,elkingtonmcb/h2o-2,h2oai/h2o-2,vbelakov/h2o,eg-zhang/h2o-2,elkingtonmcb/h2o-2,h2oai/h2o-2,111t8e/h2o-2,h2oai/h2o,100star/h2o,eg-zhang/h2o-2,elkingtonmcb/h2o-2,calvingit21/h2o-2,rowhit/h2o-2,elkingtonmcb/h2o-2,vbelakov/h2o,111t8e/h2o-2,elkingtonmcb/h2o-2,elkingtonmcb/h2o-2,elkingtonmcb/h2o-2,h2oai/h2o-2,rowhit/h2o-2,calvingit21/h2o-2,vbelakov/h2o,vbelakov/h2o,calvingit21/h2o-2,h2oai/h2o-2,100star/h2o,h2oai/h2o-2,100star/h2o,111t8e/h2o-2,eg-zhang/h2o-2,rowhit/h2o-2,111t8e/h2o-2,eg-zhang/h2o-2,111t8e/h2o-2,calvingit21/h2o-2,h2oai/h2o-2,vbelakov/h2o