Register a device - create a digital twin called Hello World

A physical device - which wants to participate in the Internet of Things (IoT) would in fact need to communicate to a cloud service.

Our device connectivity stack employs the following services:

• Device connectivity layer - Bosch IoT Hub - makes sure that only authenticated devices are accepted.

• Digital twin layer - Bosch IoT Things - takes care of the abstract representation - aka digital twin.

• Bosch IoT Edge - proves useful in more complex, heterogeneous scenarios,
  where you need to orchestrate multiple devices of different types, each speaking different protocols.
  However, Edge is not covered in this tutorial.