Android IOT tests

The stories on Medium

##ATT0: A sample project using the RainbowHat and the RainbowHat driver from RainbowHat driver on github

##ATT1: Blinking a led on a breadboard

##ATT2: Controlling an LED by a Button

##ATT3: Flowing LED

##ATT4: Breathing LED

##ATT5: RGB LED