Merge branch 'hadoop' into 'master'

.gitignore

docker-files/hadoop/.env

docker-files/hadoop/docker-compose-que-hadoop.yml

docker-files/hadoop/docker-compose.yml

docker-files/hadoop/hadoop-16goRAM.env

docker-files/hadoop/hadoop-8goRAM.env

docker-files/hadoop/hadoop-hive.env

docker-files/hadoop/hadoop.env

docker-files/hadoop/init.sql

docker-files/hadoop/overrides/namenode/entrypoint.sh

docker-files/hadoop/overrides/nodemanagers/entrypoint.sh

docker-files/hadoop/purge-hadoop.sh

docker-files/hadoop/start-hadoop.sh

docker-files/hadoop/stop-hadoop.sh

download_dataset.sh

files/dataset/.gitkeep