Refactor add-computer : use impacket CRUD

[azoxlpf]

Description

This PR refactors the add-computer module to support both SAMR and LDAPS and to use impacket’s LDAP CRUD operations instead of ldap3.

Previously, the module used a fallback to LDAPS when SAMR failed. It’s now clearer and more predictable to let the user choose the method via the protocol and options : nxc smb uses SAMR, and nxc ldap --port 636 uses LDAPS. The module supports both protocols.

Type of change

Insert an "x" inside the brackets for relevant items (do not delete options)

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Deprecation of feature or functionality
• This change requires a documentation update
• This requires a third party update (such as Impacket, Dploot, lsassy, etc)

Screenshots (if appropriate):

SMB :

LDAPS :

Checklist:

Insert an "x" inside the brackets for completed and relevant items (do not delete options)

• I have ran Ruff against my changes (via poetry: poetry run python -m ruff check . --preview, use --fix to automatically fix what it can)
• I have added or updated the tests/e2e_commands.txt file if necessary (new modules or features are required to be added to the e2e tests)
• New and existing e2e tests pass locally with my changes
• If reliant on changes of third party dependencies, such as Impacket, dploot, lsassy, etc, I have linked the relevant PRs in those projects
• I have performed a self-review of my own code
• 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)

[azoxlpf]

For the module to work, this PR needs to be merged first : #2112

[NeffIsBack]

Thanks for the PR!

[NeffIsBack]

@azoxlpf could you resolve the merge conflicts?

[NeffIsBack]

Works like a charm, LGTM:

[NeffIsBack]

Also added the Exception handling fix from #1081 with which otherwise the module crashes: