Added prototypes for the generic peak intensities file.
Only two files will be needed, instead of one file per delay. The first file (generic_delay.txt)
will contain the different delays. The second file (generic_intensity.txt) will contain the peak
intensities.
There may also be a way of including all this information in one single file... maybe by putting
the delays in the header ? This would be even simpler for the user who would only need to input 1
single file.