Inverse hyperbolic functions

[jorenham]

This adds the following functions to the boost::math namespace:

• acosh
• asinh
• atanh

[Copilot]

Pull Request Overview

This PR adds inverse hyperbolic functions (acosh, asinh, atanh) to the boost::math namespace wrapper, providing Rust bindings for these mathematical functions that were previously unimplemented.

• Adds FFI bindings and wrapper functions for acosh, asinh, and atanh
• Includes comprehensive test coverage for all three functions
• Updates documentation to mark these functions as implemented

Reviewed Changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
wrapper.cpp	Adds C++ wrapper functions and includes for inverse hyperbolic functions
src/math/special_functions/mod.rs	Declares new modules for the three inverse hyperbolic functions
src/math/special_functions/atanh.rs	Implements atanh function with tests and documentation
src/math/special_functions/asinh.rs	Implements asinh function with tests and documentation
src/math/special_functions/acosh.rs	Implements acosh function with tests and documentation
src/math/mod.rs	Updates documentation and exports the new functions
src/ffi.rs	Adds FFI declarations for the C++ wrapper functions

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