add inner class structure

kuukar_voice.py

@@ -0,0 +1,12 @@
+from kuukar_lcd import lcd
+from kuukar_leds import leds
+from kuukar_noise import noise
+
+
+class voice:
+    def __init__(self, lcd: lcd, leds: leds, noise: noise) -> None:
+        self.lcd = lcd
+        self.leds = leds
+        self.noise = noise
+    def handle_voice_prompt(self, command):
+        pass