Module to retrieve Figshare metadata for public deposit (no token)

[astrochun]

A figshare module is needed to retrieve Figshare metadata from its API. Allows for GET method with an input of the article_id and optional input of stage.

Responses should contain the metadata reduced to what we need for the README form. This includes:

1. Article ID
2. Title
3. Description
4. DOI
5. Preferred citation
6. License
7. References

• [x] API route to get Figshare article data, figshare_get
• [x] API route to extract only metadata for README form, metadata_get
• [x] Function to output only metadata for README form, figshare_metadata_readme
• [x] main.py for unicorn run
• [x] pytest and coverage configuration files
• [x] unit testing of figshare module

In addition:

• [x] GitHub actions python CI build and testing