Create layers in project architecture

[jigar288]

### 3 layers

• Controller Layer - should only consist of API routes and endpoints
• Business Layer - controller layer should pass request info to business layer. Businesss layer should perform logic & pass the data to data access layer
• Data Access Layer - this layer should only be responsible for accessing and relaying data (azure, databases, other external services)

### References

• Bulletproof node.js project architecture
• Node.js Architecture and 12 Best Practices for Node.js Development