Lead to the first configuration be tested twice

Rewrote the perl-script for the dependency generation to also accept
input file names from stdin, in order to avoid excessively large
argument lists.

time_spent is not initialized. Should be dealt with in a better way

and passing NULL from the api

on selected mpi ranks using suppress_warnings option

kernel selection. This logic will be further complicated by allowing
individual routines to be run on GPU

Previously, matrix a has been kept on the device at the end of bandred
and then copied to host later in redist_band (called from tridiag_band).
However, it seems to be more convenient to do it at the end of bandred
(since it has to be done anyway). Band to tridi is thus now not using a
on the device at all.  However, we keep it in the interface, sice it
might be usefull in the future.

elpa2_trans_ev_band_to_full_template

NOT testing with gpu,
NOT testing with no-assumed-size