gRPC transport for trooba pipeline

The module provides plugin attributes and version validation for trooba framework

website for Trooba framwork

bootstrap trooba pipeline from JSON configuration

grpc client server example

Fast isomorphic lightweight framework to build pipelines for request/response, stream/response, request/response and stream/stream use-cases

Trooba based handler that provides more consistent too busy functionality based on hystrixjs and toobusy-js functionality

too busy hystrix command for better management of backpressure

Trooba handler that provides Hystrix functionality to [trooba](https://github.com/trooba/trooba) based service pipelines.

The module provides nodejs native streaming API for trooba pipeline.