Added destructor to disable buzzer at exit

compLIB/Buzzer.py

@@ -1,4 +1,5 @@
 import RPi.GPIO as GPIO
+import atexit
 
 GPIO.setwarnings(False)
 Buzzer_Pin = 17
@@ -16,3 +17,8 @@ class Buzzer:
         :return: None
         """
         GPIO.output(Buzzer_Pin, on)
+
+def exit():
+    Buzzer.set(0)
+
+atexit.register(exit)