Space Invaders Game - Added

[Yarlin16]

Describe your changes (Mandatory)

I have added a new game - Space Invaders under KWoC 23-24. Also, I have updated README files, wherever necessary.

Screenshots of your project output, whatever you have added. (Mandatory)

https://github.com/shrey141102/PythonProjects/assets/119430739/11a7cd1f-0f65-440f-9283-08eeff211ac9

Checklist before requesting a review

• [x] I have performed a self-review of my code
• [x] If it is a new project, I have done thorough tests.
• [x] Have you updated the README.md file of the repository and added the name of the project in it?
• [x] Have you added a README.md file inside the directory of your project and explained it there properly (with images)?

[shrey141102]

wow