Debian: Allow the tool to also work with installed package.
Debian: Allow the tool to also work with installed package.

* To test the package, we remove the "nuitka" package from the
  source, and then run the tests. But as of recently, now the
  test runner depends on "nuitka.tools".

* This now allows to use the installed package "nuitka.tools"
  which normally isn't public.

kayhayen/Nuitka,kayhayen/Nuitka,kayhayen/Nuitka,kayhayen/Nuitka