Update adafruit_irremote.py

Fix the decode_bits() method in the object wrapper to return the IRMessage returned by the decode_bits() function. Otherwise decoder.decode_bits() is returning None.

Author: lstein

adafruit_irremote.py

@@ -265,6 +265,7 @@ def decode_bits(self, pulses):  # pylint: disable=no-self-use
             raise IRNECRepeatException()
         if isinstance(result, UnparseableIRMessage):
             raise IRDecodeException("10 pulses minimum")
+        return result
 
     def _read_pulses_non_blocking(
         self, input_pulses, max_pulse=10000, pulse_window=0.10