Logging cannot be set to NOTSET similar to transformers
Hi @joshzwiebel, thanks for reporting. We are going to align with `transformers`.
## Describe the bug
In the transformers library you can set the verbosity level to logging.NOTSET to work around the usage of tqdm and IPywidgets, however in Datasets this is no longer possible. This is because transformers set the verbosity level of tqdm with [this](https://github.com/huggingface/transformers/blob/b53bc55ba9bb10d5ee279eab51a2f0acc5af2a6b/src/transformers/file_utils.py#L1449) 
`disable=bool(logging.get_verbosity() == logging.NOTSET)`
and datasets accomplishes this like [so](https://github.com/huggingface/datasets/blob/83554e410e1ab8c6f705cfbb2df7953638ad3ac1/src/datasets/utils/file_utils.py#L493)
`not_verbose = bool(logger.getEffectiveLevel() > WARNING)`
## Steps to reproduce the bug
```python
import datasets
import logging
datasets.logging.get_verbosity = lambda : logging.NOTSET
datasets.load_dataset("patrickvonplaten/librispeech_asr_dummy")
```

## Expected results
The code should download and load the dataset as normal without displaying progress bars

## Actual results
```ImportError                               Traceback (most recent call last)
<ipython-input-4-aec65c0509c6> in <module>
----> 1 datasets.load_dataset("patrickvonplaten/librispeech_asr_dummy")

~/venv/lib/python3.7/site-packages/datasets/load.py in load_dataset(path, name, data_dir, data_files, split, cache_dir, features, download_config, download_mode, ignore_verifications, keep_in_memory, save_infos, script_version, use_auth_token, task, **config_kwargs)
    713         dataset=True,
    714         return_resolved_file_path=True,
--> 715         use_auth_token=use_auth_token,
    716     )
    717     # Set the base path for downloads as the parent of the script location

~/venv/lib/python3.7/site-packages/datasets/load.py in prepare_module(path, script_version, download_config, download_mode, dataset, force_local_path, dynamic_modules_path, return_resolved_file_path, **download_kwargs)
    350                     file_path = hf_bucket_url(path, filename=name, dataset=False)
    351                 try:
--> 352                     local_path = cached_path(file_path, download_config=download_config)
    353                 except FileNotFoundError:
    354                     raise FileNotFoundError(

~/venv/lib/python3.7/site-packages/datasets/utils/file_utils.py in cached_path(url_or_filename, download_config, **download_kwargs)
    289             use_etag=download_config.use_etag,
    290             max_retries=download_config.max_retries,
--> 291             use_auth_token=download_config.use_auth_token,
    292         )
    293     elif os.path.exists(url_or_filename):

~/venv/lib/python3.7/site-packages/datasets/utils/file_utils.py in get_from_cache(url, cache_dir, force_download, proxies, etag_timeout, resume_download, user_agent, local_files_only, use_etag, max_retries, use_auth_token)
    668                     headers=headers,
    669                     cookies=cookies,
--> 670                     max_retries=max_retries,
    671                 )
    672 

~/venv/lib/python3.7/site-packages/datasets/utils/file_utils.py in http_get(url, temp_file, proxies, resume_size, headers, cookies, timeout, max_retries)
    493         initial=resume_size,
    494         desc="Downloading",
--> 495         disable=not_verbose,
    496     )
    497     for chunk in response.iter_content(chunk_size=1024):

~/venv/lib/python3.7/site-packages/tqdm/notebook.py in __init__(self, *args, **kwargs)
    217         total = self.total * unit_scale if self.total else self.total
    218         self.container = self.status_printer(
--> 219             self.fp, total, self.desc, self.ncols)
    220         self.sp = self.display
    221 

~/venv/lib/python3.7/site-packages/tqdm/notebook.py in status_printer(_, total, desc, ncols)
     95         if IProgress is None:  # #187 #451 #558 #872
     96             raise ImportError(
---> 97                 "IProgress not found. Please update jupyter and ipywidgets."
     98                 " See https://ipywidgets.readthedocs.io/en/stable"
     99                 "/user_install.html")

ImportError: IProgress not found. Please update jupyter and ipywidgets. See https://ipywidgets.readthedocs.io/en/stable/user_install.html
```
## Environment info
<!-- You can run the command `datasets-cli env` and copy-and-paste its output below. -->
- `datasets` version: 1.8.0
- Platform: Linux-5.4.95-42.163.amzn2.x86_64-x86_64-with-debian-10.8
- Python version: 3.7.10
- PyArrow version: 3.0.0
I am running this code on Deepnote and which important to this issue **does not** support IPywidgets

