added a script to check duplicate files using metadata, also updated the read.me

[FourcanAbdullah]

PR Title

added a script to check duplicate files using metadata, also updated the read.me

Summary

added a script to check duplicate files using metadata, also updated the read.me to that file

Description

Added a new script that uses metadata and hashing to locate duplicate files. It takes a path and it prints out the duplicate files if found.

The changes are as follows:

• new script for duplication check
• updated read.me

Checks

in the repository

• [x] Made no changes that degrades the functioning of the repository
• [x] Gave each commit a better title (unlike updated README.md)

in the PR

• [x] Followed the format of the pull_request_template
• [x] Made the Pull Request in a small level (for the creator's wellfare)
• [x] Tested the changes you made

Thank You,

FourcanAbdullah