Add Reset pin support for I2C interface

Some devices (e.g. https://www.adafruit.com/product/938) don't have built-in hardware reset, and need to be reset via a pin. Added reset pin as an optional argument to SSD1306_I2C().

Updated SPI pin names

Thanks to @deshipu for the great work!

Now with more lint!

Thanks to @mrmcwethy!

New I2CDevice API

Fix for new I2CDevice API. Make sure your CircuitPython and libraries are up to date!

1.0.1 - Update example

This requires CircuitPython 0.9.4+!

• Switch to nativeio split APIs and bitbanging busio.

Initial release

Direct port of micropython-adafruit-ssd1306 module.