Add codefresh.yml generator

[allanchau]

The current codefresh process is a bit error prone.

We should be able to define a json file codefresh.json and have that generate the codefresh file using c codefresh init. Something like:

{
  "images": [
    { "account": "account", "container": "app" }
  ]
}

[smebberson]

@allanchau, so using the images listed in codefresh.json, it would create a codefresh.yml file that automatically creates build steps and release steps (targeting all our environments) for each image?

[allanchau]

Yeah exactly.