Test the wrappers

[sanguinariojoe]

On the past we had problems of wrappers that stopped working because someone changed something without updating the wrappers accordingly. Thus, a set of tests shall be added to test the wrappers:

• The c_api test shall be improved to carry out actual tests
• Fortran & Python testing shall be rather easy, we just need to create the tests, but making the CI/CD should not be a big deal
• Rust I suppose shall be easy as well, so far the same than Fortran and Python
• Matlab has uploaded some stuff to work with github actions. It is quite Matlab-ish... Everythin ill-documented and a mess, but we can try to give it a shot

[sanguinariojoe]

Python CI/CD is indeed already checking Python. The tests shall be added yet