👷 CI: Automated CI support for different environments (Fixes #3)

[abhiTronix]

Brief Description

This PR implements completely automated Continous Integration support for different environments in DeFFcode project.

Requirements / Checklist

• [ ] I have read the DeFFcode PR Guidelines.
• [ ] I have read the DeFFcode Documentation.
• [ ] I have updated the documentation files accordingly(if required).

Related Issue

3

Context

This PR brings complete Continous Integration support for testing DeFFcode APIs under different environments. This PR also fixes related bugs and creates new files related files., and plus adds .gitattributes.

🚀 Also, All available stable python 3.7+ versions are now officially supported by deffcode. 🎉

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [x] Breaking change (fix or feature that would cause existing functionality to change)

[codecov[bot]]

Codecov Report

:exclamation: No coverage uploaded for pull request base (master@2f5bb9d). Click here to learn what that means. The diff coverage is n/a.

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