Add a print line

Added a line to print out an unpacked waveform, just uncomment to use.
Beginnings of testing suite

Beginnings of testing suite for creating fake waveform data. The
randomised parameters are first saved to a file, so that they can be
compared to their analysed data results.
Features!

More stuff
Create data and fit it

Can now generate random data and fit it. The generated parameters are
saved to a file and so are the parameters from the fitting.