[WIP] Add initial scaffolding for hash set implementation

[Copilot]

Scaffolding a professional Python hash set repository structure

Plan:

• Create hashset.py with stub/boilerplate structure
• Create test_hashset.py with basic unit test stubs
• Create .gitignore with standard Python template
• Update README.md with proper sections (overview, features, usage, examples)

This will provide a clean foundation for implementing the hash set data structure.

Original prompt

want to create a professional GitHub repository for a Python implementation of a hash set data structure.
Please scaffold the project with requirements:

include:

hashset.py: (empty or stub file, I will add my code)

README.md: with a section for project overview, features, usage, and example code.

test_hashset.py: (stub file) for basic unit tests and example usages.

.gitignore: standard Python template.

Please generate all files as stubs/boilerplate so I can fill in code and details."

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