Support for MIHO003 OpenSensor tested and working

Moved setup code from global scope of Registry to energenie.init() ...

This makes it possible to use the registry in test cases

Improved registry listing by using iterator

setup_tool tested in simulation and works OK

setup_tool finished, ready for testing

setup_tool now written, ready to start testing

About half of the setup tool is written and roughly working

Design for all setup_tool actions done

setup_tool main menu written and working

Defined requirements for demo apps including setup tool menu

Specified the demos that we want to write as part of the device classes testing