Update MASSIVE.py

Change license

Change the DEFAULT_CONFIG_NAME

Convert the dataset to streaming mode.

Update the scenarios and intents.

Remove print

Add the capability to get the entire corpora using the 'all' subset.

Change the index of the tag 'O' to zero.

Convert BIO tags to HuggingFace classes.

Add the BIO format for the named entities.

Add download_and_extract

Remove iter

Fix : Message: Extraction protocol for TAR archives like 'https://amazon-massive-nlu-dataset.s3.amazonaws.com/amazon-massive-dataset-1.0.tar.gz' is not implemented in streaming mode. Please use instead.

Fix the issue with en-US like in the documentation

Add data loader for Amazon Massive corpus