Support Orange Pi Zero boards

[mrjones-plip]

currently kinda works if you change the line in config.py from raspberry to orange. However, still getting this error most of the time:

Mar  3 14:47:21 localhost python3[3299]: Trying to start cattrotar...
Mar  3 14:47:21 localhost python3[3299]: Loading base libraries...
Mar  3 14:47:21 localhost python3[3299]: Loading catt lib...
Mar  3 14:47:25 localhost python3[3299]: Trying to get handle to Chromecast Big Room...
Mar  3 14:47:34 localhost python3[3299]: Traceback (most recent call last):
Mar  3 14:47:34 localhost python3[3299]:   File "/home/mrjones/cattrotar/cattrotar.py", line 168, in <module>
Mar  3 14:47:34 localhost python3[3299]:     cr = cattrotar()
Mar  3 14:47:34 localhost python3[3299]:   File "/home/mrjones/cattrotar/cattrotar.py", line 62, in __init__
Mar  3 14:47:34 localhost python3[3299]:     GPIO.setup(config.sw, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
Mar  3 14:47:34 localhost python3[3299]: ValueError: This channel is already in use by system as SEE_MANUAL.

Have to run as root and have to manually install pip3 install OPi.GPIO. More work needed!