Added a manual test script.
Added a manual test script.

The manual test script is used for end to end-ish testing. This is a bit
hacky and likely to be adapted to cover more areas but at the moment it
works quite well as a basic full test against the live device.

skimpax/python-rfxcom,d0ugal-archive/python-rfxcom,kalfa/python-rfxcom,AndyA13/python-rfxcom,skimpax/python-rfxcom,kalfa/python-rfxcom,AndyA13/python-rfxcom,d0ugal-archive/python-rfxcom