Fix HEX-1340 "Neural Net: Labels on the score matrix are incorrect"
Fix HEX-1340 "Neural Net: Labels on the score matrix are incorrect"

If the test set didn't bring its own categorical dictionary, then it fell back
to 1..N. Now, we ask the trained model for its categorical dictionary if it was
trained on data that contained the same column as the test data response
column.

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