Improve development speed with model scaffolding snippets

[foyzulkarim]

Summary

This pull request aims to improve development speed by creating user snippets for our Node.js boilerplate. It supports four types of snippets for a specific domain model:

• API Snippet: A base controller structure is generated.
• Service Snippet: Core service methods are outlined. This will have mongoose usages.
• Request Snippet: Joi validations snippets.
• Schema Snippet: Mongoose schema validation skeleton
• Index: Index file for the domain module

This change is intended to:

• Save time: Boilerplate code generation is streamlined.
• Promote consistency: A standardized file structure is encouraged.
• Support onboarding: New developers can quickly get up to speed.