Added Grad cam visualizer

[AMS003010]

Pull Request for DL-Simplified 💡

Issue Title : Heatmap Visualization of a Image Classification Model like Xception using GRAD-CAM

• Info about the related issue (Aim of the project) : Files for the Heatmap Visualization of a Image Classification Model like Xception using GRAD-CAM has been added
• Name: Abhijith M S
• GitHub ID: AMS003010
• Email ID: [email protected]
• Idenitfy yourself: GSSOC'24

Closes: #880

Describe the add-ons or changes you've made 📃

I have added the grad_cam_visualizer.ipynb file under Model folder and a image under Images folder.
I have added the requirements.txt and a README.md as well.

Type of change ☑️

What sort of change have you made:

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Code style update (formatting, local variables)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested? ⚙️

It has been tested with the python interpreter in a virtual environment

Checklist: ☑️

• My code follows the guidelines of this project.
• I have performed a self-review of my own code.
• I have commented my code, particularly wherever it was hard to understand.
• I have made corresponding changes to the documentation.
• My changes generate no new warnings.
• I have added things that prove my fix is effective or that my feature works.
• Any dependent changes have been merged and published in downstream modules.

[github-actions]

Our team will soon review your PR. Thanks @AMS003010 :)

[abhisheks008]

Hi @AMS003010 please follow the project structure and implement at least 3 models for this problem statement.