Add glue hf datasets

[meganung]

Adding all glue datasets (https://huggingface.co/datasets/glue) and super glue datasets (https://huggingface.co/datasets/super_glue).

Added test.py for both glue and superglue and all pass.

[stephenroller]

Wow move fast! Great to see

• Add tests for all of them, please
• Add a MultiTeacher as the new default for glue and superglue. I'll show you an example shortly

[meganung]

This is an evaluation dataset (see https://huggingface.co/datasets/glue) so it only has a test split.
An alternative is to have train and valid map to None.

[stephenroller]

Good call out. Not sure what's going to happen if we make an empty teacher but we can try

[stephenroller]

ParlAI/parlai/tasks/decanlp/agents.py

Lines 67 to 83 in 2f0e387

	class DecaNLPTeacher(MultiTaskTeacher):
	def __init__(self, opt, shared=None):
	decanlp_tasks = [
	'squad',
	'iwslt14',
	'cnn_dm',
	'multinli',
	'sst',
	'qasrl',
	'qazre',
	'woz',
	'wikisql',
	'mwsc',
	]
	opt = deepcopy(opt)
	opt['task'] = ', '.join(decanlp_tasks)
	super().__init__(opt, shared)

Example of a MultiTeacher

[meganung]

for evaluation datasets, changed mapping of train and valid to None e.g. hf_splits_mapping = {'train': None, 'valid': None, 'test': 'test'} and removed the task from the tests and the multitaskteacher, otherwise will produce errors. e.g. display_data -t glue:ax will work only if you set the datatype to test now.

[stephenroller]

Awesome!