Restructuring, adding functionality, and documenting package

[baronet2]

Hi @leandertolksdorf ,

Thanks so much for this great tool! I was very happy to come across this repo, and even happier to see that contributions are welcome!

I've been working a bit on expanding the functionality and restructuring the package to allow, I hope, for even more improvements in the future.

Some of the bigger changes:

• Added attributes/functionality, mostly to the Track class (genre, labels, duration, etc.)
• Moved scraping-specific functionality into a separate scraper.py file
• Added basic classes for Artist and Label as scaffolding to grow the API in the future
• Cleaned up/removed code that seemed repetitive/unnecessary

I've tried to make the code robust for edge cases like IDs or mashups of several songs, and built in such a way that more advanced structures can be easily added in the future. I've added documentation in numpydoc format and updated the README to account for the changes.

I am happy to discuss/clarify any of changes and for you to edit as you see fit.

Hope you and others find this helpful! 😃

Ethan Baron

[leandertolksdorf]

Hey @baronet2,

Thank you for improving this repo!

Leander Tolksdorf