This PR updates the turbomole package file but does not introduce any
new funtionality. The updtes are:
- use spack interface for subprocess.PIPE and subprocess.Popen
- clean up based on flake8
- remove some extra whitespace
* Add the turbomole package.
This package has three modes of operation that need to be selected
independently. This is handled with spack vaiants. Turbomole has a builtin MPI
implementation so it does not need to depend on an mpi provider when using the
+mpi variant.
* Whitespace cleanup.
