Previous pin maps were still wrong in various ways.
Tested on CPX and FeatherWing Crickits.
To use in CircuitPython, download the .zip file and copy its contents to the `lib` folder on the `CIRCUITPY` drive. Or, simply install the [Adafruit CircuitPython bundle](https://github.com/adafruit/Addafruit_CircuitPython_Bundle).
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To use in CPython, `pip install adafruit-circuitpython-seesaw`.
Read the [docs](https://circuitpython.readthedocs.io/projects/seesaw/en/latest/) for info on how to use it.