added coin tosser game

[anijit18]

PR Description 📜

Coin Tosser Game added
Fixes #4898

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Mark the task you have completed ✅

• I follow CONTRIBUTING GUIDELINE & CODE OF CONDUCT of this project.
• I have performed a self-review of my own code or work.
• I have commented my code, particularly in hard-to-understand areas.
• My changes generates no new warnings.
• I have followed proper naming convention showed in CONTRIBUTING GUIDELINE
• I have added screenshot for website preview in assets/images
• I have added entries for my game in main README.md
• I have added README.md in my folder
• I have added working video of the game in README.md (optional)
• I have specified the respective issue number for which I have requested the new game.

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[kunjgit]

Thank you @anijit18 ,for creating the PR and contributing to our GameZone 💗
Review team will review the PR and will reach out to you soon! 😇
Make sure that you have marked all the tasks that you are done with ✅.
Thank you for your patience! 😀

[ishita-43]

Please do the following changes
Add your game entry into gamezone main readme.md file
Add your game image into the asset folder of the gamezone follow naming convention while naming the image

[ishita-43]

@ishita-43 Please review my pr #4842 , I have resolved conflicts and done the requested changes

You need to make the changes in the gamezone repo readme.md file you will find them outside of game folder in same hierachy as games asset readme.md Please make changes there