Draft: Directory Manager TDD .

This MR is linked to the issue #1569.

TODO:

• Create a new class for the BackupSettings of the directory manager without erase, load, plot, and the filepath is only a file name (string).
• Remove exists_ok and explain the behavior on the documentation.
• Add an expected fail on the BCD tests on Windows due to the size of the paths.
• Add a mechanism on the DiscFromExe to use the directory manager instead of the directory creator and add tests.
• Check test assertions after the latest rebase.