When entering the FileOpener context manager, a file lock is now created with the following filename structure " ~<file_name>.lock". All of the functions in the datadict_storage.py module use the FileOpener internally.

All of the functions that use the FileOpener now also have a new argument file_timeout to pass a different amount of time for the timeout of a lock file. This is because in my testing when files start to get big, sometimes a writer or reader takes longer than the timeout time, making the program crash.

I have also created a simple test that tests if the FileOpener creates the lock file, crashes program and checks if the lock file is still being deleted afterwards. I wasn't sure what else add to the unit tests.

As a little convenience bonus, all of the storage functions now accept both str and Path instead of just str and converting them to Path in the function.