FEAT: floor_divide ufunc implementation

[SwayamInSync]

Copilot Summary

This pull request adds full support for the floor_divide operation for quad-precision floating-point numbers. It introduces robust implementations for both quad-precision and long double types, registers the new universal function (ufunc) with NumPy, updates documentation to reflect the new support, and adds comprehensive tests covering edge cases and mathematical properties.

Implementation of floor_divide operation:

• Added quad_floor_divide and ld_floor_divide functions in ops.hpp to correctly handle all special cases (NaN, infinities, signed zeros, etc.) and match NumPy's semantics for floor division with quad-precision and long double types. [1] [2]

Integration with NumPy:

• Registered the new floor_divide ufunc for quad-precision and long double types in the NumPy extension initialization, making it available as a NumPy operation.

Documentation update:

• Updated release_tracker.md to mark floor_divide as fully supported for both quad and long double types.

Testing and validation:

• Added comprehensive parameterized tests in test_quaddtype.py to verify floor_divide correctness across a wide range of input values, including all relevant edge cases and mathematical properties.

[juntyr]

LGTM

[SwayamInSync]

Cool lets merge it then