Refactoring Code to mesh with the architecture set by https://github.com/GammaGames/kano_wand

Overall - moving from bluez to bleak will give us universal usage, and the rest of the ML side of this project can go on without a hitch.

kano_wand/constants.py

@@ -1,3 +1,5 @@
+from enum import Enum
+
 BUTTON = 1
 NINE_AXIS = 2
 ACCELEROMETER = 3
@@ -15,3 +17,5 @@ CHARACTERISTIC_UUIDS = {
     TEMPERATURE:("64a70014-f691-4b93-a6f4-0968f5b648f8"),
     MAGNETOMETER:("64a70021-f691-4b93-a6f4-0968f5b648f8")
 }  # <--- Change to the characteristic you want to enable notifications from.
+
+