support env files in django console and manage.py

When doing Django development, PyCharm has a Django Console which requires access to the the env vars in the .env file.

The same goes for manage.py commands.

Currently, I have to define variables in .env file and in the Django Console settings and in the manage.py settings.

https://www.jetbrains.com/help/pycharm/django-console.html
https://www.jetbrains.com/help/pycharm/running-tasks-of-manage-py-utility.html?search=manage.py