Add torus volume

[Gopesh111]

Description

I have implemented a new algorithm to calculate the volume of a torus.
This implementation includes:

• Type hints for all parameters and return values.
• doctest examples to verify correctness.
• A link to the Wikipedia resource in the docstring.
• Handling for negative radius inputs.

Type of change

• New feature (non-breaking change which adds functionality)

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes