Cerbernetix.toolbox

Fixed

- Wrong use of the module path
It was generating the error `TypeError: expected str, bytes or os.PathLike object, not list`

Changed

- `get_application_path()`, `get_application_name()`, and `get_file_path()` now all require the name of the main package for getting the application's path.

Fixed

- Wrong detection of the application path, in `get_application_path()` (`__main__` has no attribute)
The trick used was not working, the `__main__` module has no attribute.

Added

- Helpers around file paths.