Renamed reverb to delays

Experts said that it is no digital reverb to simply chain delays and
distances in between them. But to fill also stuff in between them,
more subtle algorithms are needed to calculate all that in appropriate time.
Rather than dealing with high maths required for that subject, I rename
it to delays and would apply reverb with external tools.

scripts/add-reverb → scripts/add-delays

@@ -2,7 +2,7 @@
 import script_preamble, numpy, re, soundfile, matplotlib, sys, os
 import matplotlib.pyplot as plt
 from yaml import safe_load as yamload
-from Sompyler.room import Room
+from Sompyler.shapedelays import Room
 from Sompyler.synthesizer import normalize_amplitude
 from Sompyler.audiofile import save