Refactor tests as a subpackage
This MR moves the tests/
directory into the main library to become the idq.tests
subpackage; this means that they are installed with the main package and executable in-situ as
python -m pytest --pyargs idq.tests
This MR moves the tests/
directory into the main library to become the idq.tests
subpackage; this means that they are installed with the main package and executable in-situ as
python -m pytest --pyargs idq.tests