* Move tests to device-type specific test files to make improvements more approachable
* protocol: remove the port parameter from query, as there are no other known ports, fix docstrings
* Revise docstrings, remove superfluous information and remove unused methods ({set,get_icon} and set_time)
* cli: indent device output to make it more easily readable when having multiple devices
* remove adjust flake8 ignores (we have no setup.py anymore)
* pyproject: include cli tool to coverage, add config for interrogate (docstring coverage)
* bulb: raise exception on color_temp error cases instead of returning zero values
* improve bulb tests, simplify conftest
* strip: rename plugs property to children and move it to smartdevice
* Convert to use poetry and pyproject.toml, update README
* add some resources for contributors
* minor adjustments
* ci: separate tests from linting, run using poetry
* add pytest-mock to dev requirements
* combine running tests and reporting to codecov
* generate both xml and html coverage reports
* add codecov to dev dependencies
