Added base path for directory enumeration

[pUrGe12]

Proposed change

Closes #1009. Updated the dir_scan and admin_scan modules to take the base directory from the target whenever specified. This allows Nettacker to perform directory enumeration on top of existing paths, as shown in the image below.

Type of change

• New core framework functionality
• Bugfix (non-breaking change which fixes an issue)
• Code refactoring without any functionality changes
• New or existing module/payload change
• Localization improvement
• Dependency upgrade
• Documentation improvement

Checklist

• I've followed the [contributing guidelines][contributing-guidelines]
• I've run make pre-commit, it didn't generate any changes
• I've run make test, all tests passed locally

[securestep9]

thank you @pUrGe12 ! 🚀