Add option generate-krb5-file for krb5 configuration

[mpgn]

Description

This PR add the option generate-krb5-file like generate-hosts-file to generate a valid krb5.conf file in order to do kerberos with other tool.

Type of change

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

How Has This Been Tested?

Agains goad lab

Checklist:

• 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 and existing e2e tests pass locally with my changes
• My code follows the style guidelines of this project (should be covered by Ruff above)
• I have performed a self-review of my own code
• I have made corresponding changes to the documentation (PR here: https://github.com/Pennyw0rth/NetExec-Wiki)

[NeffIsBack]

LGTM