Added the Eslint in project

[anshul137]

General Overview

• Added the ESlint
• Added the .gitignore in the project
• Fix all the issues generated by ESlint
• Created npm script to run the ESlint from commnad line
• To run ESlint on all the files use cmd npm run esLint

What does this PR do?

Added the Linter

Linters help us spot "silly" mistakes that all programmers make, or help us avoid certain code patterns that often lead to bugs. We want to make it easy for ourselves and new developers joining our project to not introduce bugs or bad code. I will use ESlint

Related PRs and Issues

Closes #106

Have you updated the README.md file?

• [x] yes
• [ ] no

Have you made any big breakthrough change?

• [x] yes
• [ ] no

Is the code beautified?

• [x] yes
• [ ] no

Is the code clear to understand woth proper variable naming and comments?

• [x] yes
• [ ] no