Add a launcher to contentctl.py to allow easier debugging and launchi…

[Res260]

Add a launcher to contentctl.py to allow easier debugging and launching with python -m contentctl.contentctl

[pyth0n1c]

Yes, this looks like an improvement for some types of testing/debugging without doing a poetry install or pip install :)

[pyth0n1c]

For awareness of anything else looking at the PR, this addition means that you can do things like

python -m contentctl.contentctl validate
python -m contentctl.contentctl test --post-test-behavior always_pause mode:all

which is convenient, because you do not need to poetry install / poetry shell or pip install contentctl to run the tool as long as you have the requirements met.

The base branch was changed.

[Res260]

Yes and it also allows to put breakpoints in IDEs like pycharm and VS code (idk if there is another way but its usually how I do it haha)