[#9] Implement default project structure

[ErhanCitil]

I've added the default project structure to the netland project. It's easier to work with the default project structure that is developed by the company where I'm an intern.

[gitguardian]

⚠️ GitGuardian has uncovered 3 secrets following the scan of your pull request.

Please consider investigating the findings and remediating the incidents. Failure to do so may lead to compromising the associated services or software components.

🔎 Detected hardcoded secrets in your pull request

GitGuardian id	Secret	Commit	Filename
4905591	Django Secret Key	5a3dd8a	netland/settings.py	View secret
8642123	Django Secret Key	5a3dd8a	docker-compose.yml	View secret
8642125	Django Secret Key	5a3dd8a	dotenv.example	View secret

🛠 Guidelines to remediate hardcoded secrets

1. Understand the implications of revoking this secret by investigating where it is used in your code.
2. Replace and store your secrets safely. Learn here the best practices.
3. Revoke and rotate these secrets.
4. If possible, rewrite git history. Rewriting git history is not a trivial act. You might completely break other contributing developers' workflow and you risk accidentally deleting legitimate data.

To avoid such incidents in the future consider

• following these best practices for managing and storing secrets including API keys and other credentials
• install secret detection on pre-commit to catch secret before it leaves your machine and ease remediation.

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