Nats-streaming-server

Added support for NATS streaming server in nodejs.
This release hold the listener and publisher abstract classes for node-nats-streaming

Micro Services Helper

This release holds all the errors and middle wares needed while using microservices, which are:

Errors:

• Bad Request Error
• Database Connection Error
• Not Authorised Error
• Not Found Error
• Request Validation Error
• Abstract Class for Custom Error

Middlewares:

• Current User Middleware
• Error Handling Middleware
• Require Authorization Middleware
• Request Validation Middleware