Configuration and output changes

[elv-john]

Two changes:

• --output option allows getting any YAML data to be sent to a file specified at the CLI for EluvioCli.js and EluvioLiveCli.js
• --network option that allows specifying the network that the commands run on. Defaults to main. Removes the need to make changes to src/Config.js

[elv-serban]

For customers I would like to go with main dv3 (because I want to call this a dev network - for developers to build on top of the content fabric) then I think either test or tv4 for the test network and then local for the local qfab (127.0.0.1).

It is important to finalize these names before we expose them officially:

In summary this is what I'm thinking:

• main - the main Content Fabric network
• dv3 - Content Fabric dev network
• tv4 - Internal Content Fabric test network
• local - Local development environment

[elv-john]

These values are taken from Config.js, e.g.:

const networks = {
  main: "https://main.net955305.contentfabric.io",
  demo: "https://demov3.net955210.contentfabric.io",
  demov3: "https://demov3.net955210.contentfabric.io",
  test: "https://test.net955205.contentfabric.io/config",
  dev: "http://localhost:8008/config?qspace=dev&self",
};

So I would need to rename all of these to conform. Easy to do, but don't want tomato this change without checking.