add new script: Animated image generator

[SeminKim]

Related Issue

The issue was about adding new script.

• [x] Hacktoberfest2022 Participant
• [x] Contributor

Closes: #1111

Describe the changes you've made

I added a new script, which generates animated image from frame numbers.

Type of change

What sort of change have you made:

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] 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?

I tested the script with some example files and wrote about one result in README.md

Checklist:

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

Screenshots

I think the example shown in 'output' section of README is already enough for description.

[welcome[bot]]

Hello there! 👋 Welcome to the project! 💖 Thank you and congrats 🎉 for opening your first pull request. Please adhere to our Code of Conduct. 🙌🏻 We will get back to you as soon as we can. 😄

Feel free to get in touch with me through social media handles. Hope to see you there!😄

[welcome[bot]]

Congrats on merging your first Pull Request! 🎉 All the best for your amazing open source journey ahead. 🚀⚡️