row aggregations, LightGBM

Dev corrections (#37)

* single neptune context

* bug fix -> row as type float

* imports optimized

* corrected metric name

* step names' corrections

* added info that kaggle submit successful

solution-3 with aggregations and bucketing added

Dev (#34)

* added some stat features to row-wise aggregations (#30)

* Dev bucket aggregations (#32)

* added bucket aggregations, to pipelines and configs

* added bucket aggs

* Dev lgbm monitor (#33)

* added lgb monitoring

* fixed naming bug

* hyperparam update

* renamed bucket_aggregations

* prepare for release 3

open solution release 2

solution-2

Update neptune.yaml

open solution release 1

initial solution