in elpa2_bandred_template

putting scripts on one place in the repository in an attempt to make
running and processing scaling tests more easy and systematic
Scripts will be further improved

But allow this in cholesky and hermitian multiply test

It is planned to add another matrix type for the tests.
The names of the prepare routines have become a bit inconsistent and
confusing. Thus the rename

This closes issue #51.

This closes issue #51.