Lift restriction of UUID length in Client.

UUIDS of the 'standard pattern' (12345678-0000-1000-8000-00805f9b34fb) can be supplied as 16 or 32 bit 'short version' (written as string)

bleekWare/Client.py

@@ -325,6 +325,11 @@ def address(self):
 
     def _find_characteristic(self, uuid):
         """Find and return characteristic object by UUID. PRIVATE."""
+        if len(uuid) == 4:
+            uuid = f'0000{uuid}-0000-1000-8000-00805f9b34fb'
+        elif len(uuid) == 8:
+            uuid = f'{uuid}-0000-1000-8000-00805f9b34fb'
+
         for service in self.services:
             if uuid in service.characteristics:
                 return service.service.getCharacteristic(UUID.fromString(uuid))

bleekWare/Scanner.py

@@ -9,7 +9,6 @@
 from java import jclass, jint, jvoid, Override, static_proxy
 from java.util import HashMap
 
-# from android.bluetooth.le import BluetoothLeScanner
 from android.bluetooth.le import ScanCallback, ScanResult, ScanSettings
 from android.bluetooth import BluetoothAdapter