New LDAP Flag Listing OUs

[termanix]

Description

This new flag listing OUs on target domain and listing users who is also part of OU. It works smilliar with --groups.

Type of change

• [x] New feature (non-breaking change which adds functionality)

Screenshots (if appropriate):

Checklist:

• [x] I have ran Ruff against my changes (via poetry: poetry run python -m ruff check . --preview, use --fix to automatically fix what it can)
• [x] I have added or updated the tests/e2e_commands.txt file if necessary
• [x] New and existing e2e tests pass locally with my changes
• [x] If reliant on changes of third party dependencies, such as Impacket, dploot, lsassy, etc, I have linked the relevant PRs in those projects
• [x] I have performed a self-review of my own code
• [x] I have commented my code, particularly in hard-to-understand areas
• [ ] I have made corresponding changes to the documentation (PR here: https://github.com/Pennyw0rth/NetExec-Wiki)