A polish was needed after perturbation (duh!)

See https://github.com/autodiff/autodiff/commit/5a8501f36b537a0663105b1288f29801dec495a6

Just need to fill in the remaining terms and test, test, test

Noted in https://github.com/CoolProp/CoolProp/issues/2149

More testing is still needed to identify other issues

Also quiet the shell output

Fix bug in temperature ones

I am confused...

And add test