Move audio scripts to audio folder

src/reachy_mini_conversation_demo/{audio_sway.py → audio/audio_sway.py}

@@ -6,7 +6,7 @@ from dataclasses import dataclass
 from typing import Callable, Optional, Tuple
 
 import numpy as np
-from reachy_mini_conversation_demo.speech_tapper import SwayRollRT, HOP_MS
+from reachy_mini_conversation_demo.audio.speech_tapper import SwayRollRT, HOP_MS
 
 
 @dataclass

src/reachy_mini_conversation_demo/{gstreamer.py → audio/gstreamer.py}

@@ -1,5 +1,4 @@
 import logging
-import os
 from threading import Thread
 from typing import Optional