Add build and deploy package scripts

[hassankhan]

Description

What is the use case that should be solved?

Having build and deploy scripts that are more tailored to Serverless projects is a win for ease-of-use.

Additional Data

Version of generator-serverless-nodejs-ts you're using: 1.0.0

Node Version: 8.11

Operating System: macOS 10.13

[sandyklark]

Is this solved by the existence of generator-serverless-nodejs-ts ?