0.2.0 - More Arduino stuff

• Removes NeoPixel in favor of the separate NeoPixel library.
• Adds map_range, shift_in and shift_out to match their Arduino counterparts map, shiftIn and shiftOut respectively. Thanks to @asherlie and @brentru for them!

Full change list from 0.1.3.

To use in CircuitPython, download the .mpy file and copy it to the lib folder on the CIRCUITPY drive. Or, simply install the Adafruit CircuitPython bundle.

Read the docs for info on how to use it.