file naming of temporary kwave input and output .h5 -files leads to error in multiprocessed scripts

[cbender98]

so far we did not specify the naming of the file created by kwave.

kwave creates files where the namings are just based on the current time (hours:minutes:seconds).

for multprocessing scripts this can cause errors since different processes (which are creating the same file within one second) are refering to the same file path and thus overwriting it / deleting it.

one can overcome this problem by specifying the file names in a unique manner (using process ids)