* Add ChildDevice and ChildProtocolWrapper
* Initialize & update children
* Fix circular imports
* Add dummy_protocol fixture and tests for unwrapping responseData
* Use dummy_protocol for existing smartprotocol tests
* Move _ChildProtocolWrapper to smartprotocol.py
* Use dummy_protocol for test multiple requests
* Use device_id instead of position for selecting the child
* Fix wrapping for regular requests
* Remove unused imports
* tweak
* rename child_device to childdevice
* Fix import
* Pull has_emeter property up to tapodevice base class
This will also use the existence of energy_monitoring in the component_nego query to decide if the device has the service.
* Move emeter related functions to tapodevice
* Remove supported_modules override for now
This should be done in a separate PR, if we want to expose the available components to cli and downstreams
* Dedent extra reqs
* Move extra_reqs initialization
* Fix tests
