Script to convert all sca files to CSV

The user can call the file with a list of files to convert or without
parameters. The script will then take all sca files from the current
folder. The output for each file is the same filename with csv
extension.
Evaluate latencies from files

The script iterates a list of files and outputs the latencies for each
file in each one line. The files are either given as parameter or all
csv files in the current folder are used if no parameter is given.

The output of each file is:
<access latency> <network latency> <total latency>