Added Password Strength Checker project in Python

[SHEEFANIGAR]

Pull Request

##Title Added Password Strength Checker project in Python[Hacktoberfest-accepted]

Description

This PR adds a beginner-friendly Password Strength Checker in Python. It checks whether a password is strong, moderate, or weak based on length, character types, and symbols. Useful for learning string handling, regex, and logic in Python.

Checklist

• [x] I have tested these changes locally.
• [x] I have added appropriate comments in the code, particularly in complex sections.
• [x] I have updated the documentation if needed.
• [x] My code follows the project's coding style guidelines.
• [ ] I have added/modified tests to cover the changes.

Suggested Labels: Hacktoberfest-accepted