Adafruit-circuitpython-neopixel

This release reverts the use of PixelBuf. It will be reintroduced once CircuitPython 5.0.0 is stable. This released is versioned as 5.0.0 because it removes an external dependency (adafruit-circuitpython-pypixelbuf) and we'll do a major release again when PixelBuf is reintroduced.

To use in CircuitPython, simply install the [Adafruit CircuitPython bundle](https://circuitpython.org/libraries).

To use in CPython, `pip3 install adafruit-circuitpython-neopixel`.

Read the [docs](http://circuitpython.readthedocs.io/projects/neopixel/en/latest/) for info on how to use it.

This release includes:
* Added support for PyPixelBuf API
* Migrating this repository from Travis to GitHub Actions. This has no effect on the behavior of the code itself.

To use in CircuitPython, simply install the [Adafruit CircuitPython bundle](https://circuitpython.org/libraries).

To use in CPython, `pip3 install adafruit-circuitpython-neopixel`.

Read the [docs](http://circuitpython.readthedocs.io/projects/neopixel/en/latest/) for info on how to use it.

* It was [decided](https://github.com/adafruit/Adafruit_CircuitPython_NeoPixel/pull/53#issuecomment-560787177) this should live elsewhere.

To use in CircuitPython, simply install the [Adafruit CircuitPython bundle](https://circuitpython.org/libraries).

To use in CPython, `pip install adafruit-circuitpython-neopixel`.

Read the [docs](http://circuitpython.readthedocs.io/projects/neopixel/en/latest/) for info on how to use it.

* Add `NeoPixel_SPI` class which drives NeoPixels via SPI port.

To use in CircuitPython, simply install the [Adafruit CircuitPython bundle](https://circuitpython.org/libraries).

To use in CPython, `pip install adafruit-circuitpython-neopixel`.

Read the [docs](http://circuitpython.readthedocs.io/projects/neopixel/en/latest/) for info on how to use it.

Example filenames are now Adabot Approved. Thanks dherrada.

To use in CircuitPython, simply install the [Adafruit CircuitPython bundle](https://github.com/adafruit/Adafruit_CircuitPython_Bundle).

To use in CPython, `pip install adafruit-circuitpython-neopixel`.

Read the [docs](http://circuitpython.readthedocs.io/projects/neopixel/en/latest/) for info on how to use it.

* Allow colors to be any sequence of ints rather than forcing tuple. Thanks to cpforbes

To use in CircuitPython, simply install the [Adafruit CircuitPython bundle](https://github.com/adafruit/Adafruit_CircuitPython_Bundle).

To use in CPython, `pip install adafruit-circuitpython-neopixel`.

Read the [docs](http://circuitpython.readthedocs.io/projects/neopixel/en/latest/) for info on how to use it.