Pull Request Code Quality Automations

[palisadoes]

We have spent some time refactoring the code base. Each pull request now automatically analyzes your code for undesirable characteristics.

1. The Dart Package Analyzer dart-package-analyzer ensures consistent formatting
2. We automatically evaluate each Dart file submitted to ensure they are all under 300 lines in length (To be enforced after May 22 2021)

Please ensure your submissions meet these guidelines. Our CONTRIBUTING.md file explains what you'll need to do.

[sumitra19jha]

@palisadoes @Sagar2366 Can we update the contributing guideliness further.
Recently we have done a lot of changes and some are going on:

1. File Size limited to 300 lines
2. Linting should be followed
3. Separation of business logic form UI
4. Use SizeConfig file to scale the UI, rather than constant value
5. Use Data Models

Some of them are missing in the documentation, and some needs to be elaborated more. Can I work on updating the documentation further?

[palisadoes]

@sumitra19jha go ahead

[sumitra19jha]

@sumitra19jha go ahead

Ok

[palisadoes]

We have updated the deadline to May 22nd