Add --dry-run Functionality to TwinTrim for Safe Simulated Duplicate Removal

[adityakalburgi]

This PR introduces a --dry-run option to TwinTrim, allowing users to simulate the duplicate removal process without making any changes. The feature is designed to give users a safe preview of what actions will be taken, ensuring they can confidently proceed with the actual duplicate removal process.

Key Changes:
Added the --dry-run flag to simulate file deletions.
Updated the core logic to handle the dry run mode.
Modified the README to include documentation

resolves issue #58

[Kota-Karthik]

@adityakalburgi
can you please add screenshots , for showing us how this new --dry-run mode looks

[adityakalburgi]

ok will share it

[adityakalburgi]

Hi! @Kota-Karthik here is the screenshort how it works

1. when there were no duplicates in my directory
2. when i created duplicate in my directory
   
   

[techy4shri]

Make these changes and wait for further review.

[adityakalburgi]

i have done the required changes

[techy4shri]

I do not see the changes in option seciton in readme yet, kindly implement it.

[adityakalburgi]

@techy4shri DONE!! I have added it in option section..

[techy4shri]

Approved! Everything is great! Thank you @adityakalburgi

[adityakalburgi]

Hi! @Kota-Karthik can you please explain me what the issue is?..

[Kota-Karthik]

@adityakalburgi go through the changes you made and try to run the project
You will notice , you have many errors in updated code
you can check your code