Fix case sensitive lookups in re3data software dict

[Senui]

Hello!

Great little tool that could help us out a lot with automating the download process from certain data portals! Thanks for making this available to the research community!

I wanted to try it out, but bumped into a small issue, which I hope this PR fixes. When trying out a download from a Dataverse repository that is not in the fast lookup table SERVICES_NETLOC, the API resorted to the RE3DATA_SOFTWARE lookup table, where I got the following KeyError:

datahugger.get("https://doi.org/10.17026/dans-279-hy72", "data")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python3.9/site-packages/datahugger/api.py", line 266, in get
    return _base_request(
  File "/usr/local/lib/python3.9/site-packages/datahugger/api.py", line 194, in _base_request
    return _base_request(
  File "/usr/local/lib/python3.9/site-packages/datahugger/api.py", line 205, in _base_request
    service_class = _resolve_service(url, doi)
  File "/usr/local/lib/python3.9/site-packages/datahugger/api.py", line 317, in _resolve_service
    service_class = _resolve_service_with_re3data(doi)
  File "/usr/local/lib/python3.9/site-packages/datahugger/api.py", line 356, in _resolve_service_with_re3data
    return RE3DATA_SOFTWARE[r_software]
KeyError: 'Dataverse'

The dataset in question can be found here: https://ssh.datastations.nl/dataset.xhtml?persistentId=doi:10.17026/dans-279-hy72

'DataVerse' is however in the RE3DATA_SOFTWARE lookup table, but with a different case. I created this pull request to make the keys in RE3DATA_SOFTWARE case-insensitive.

Cheers,
Ahmad

[J535D165]

Thanks!!

[J535D165]

New release available.