Wi4MPI 3.7.1

Bugfixes:

• improve timeout feature support with multithreading (PR #79)

Support:

• Improve NVHPC compilers support (PR #75)

Documentation:

• Update documentation on MPIX_ functions support (PR #77)
• Update documentation on C++ bindings limitation (PR #76)

Acknowledgements:

Many thanks to @kevin-juilly & @adrien-cotte for the listed developments