Read 1-d signal from file in ascii format
signal = ReadSignal(Name)
'Caruso', 'ESCA', 'Greasy', 'HochNMR', 'Seismic', 'Laser', 'RaphaelNMR', 'Sunspots', 'Transients', 'Tweet'
1-d signal
A descriptor file for the data is printed