Adafruit-circuitpython-featherwing

Added the 8x16 LED Matrix FeatherWing. This addition reimplements some similar functionality to the NeoPixel and DotStar helpers such as rotating, shifting, and animation.

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

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

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

Added the Ultimate GPS FeatherWing. This addition mostly makes initialization a little easier and give you a couple of speed calculations.

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

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

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

Added DS3231 Real Time Clock FeatherWing. This extends the DS3231 library and makes updating the time extremely easy by having ability to change individual numbers instead of the entire time/date structure as well as a few other goodies like checking number of days and getting/setting by unix time on boards that support this. At this time, there are some known issues running the unix functions on the nRF52840 Express and Particle Boards.

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

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

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

Added 7-Segment LED FeatherWing

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

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

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

Added the NeoPixel FeatherWing. This is leverages the existing Adafruit DotStar library and adds the same functionality to the NeoPixel FeatherWing.

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

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

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

Added the DotStar FeatherWing. This is a nice addition that leverages the existing Adafruit DotStar library to make adding some powerful effects very easy. such as rotating, shifting, and animation.

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

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

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