Packages whitelist

**Describe the feature you want**

Simply put, a whitelist feature. For now it could be something basic like a list of packages names in a text file with a specific name.

Look for the package list handling in the codebase, likely in a module that reads or filters packages. The feature requires adding a whitelist file, reading it, and filtering the debloat list accordingly. Start by understanding how packages are currently enumerated and selected for removal. Check for existing configuration or file I/O patterns to follow.

Written by the indexing model from the issue text.