refact data: bring .tar.gz back with interleaved sorting

trying again by getting rid of dataset class script

fix audio casting type in dataset generate_examples method

add dataset info to README

trying with a flat tar

add config strings to dataset class

forcing split name to be train instead of test

gett python script back with GeneratorBasedBuilder subclass instead of DatasetBuilder

Remove dataset_info param from README metadata

trying renaming the tar file to test.tar

trying getting the tar out of the data/ dir

removing task_ids from README metadata

trying removing gunzip and data class files

trying with tarred file instead of gunzip

Add more info to metadata on README

renaming data class viewer file

Update README.md with dataset info metadata

add dataset class for viewer + update data dummy gz

Delete non compressed data files

Delete test.csv

arrange files under data/ dir

Upload 2 files

Update README.md

initial commit