Extract robo commands into a custom package

[mariano-dagostino]

I've been playing with the idea of extracting the robo commands into a custom package. The task is quite simple at first glance but it requires some custom packages name decisions first.

I think we should go with an approach like this https://robo.li/extending.html#creating-a-robo-extension

The todo I see here is:

1. decide if the current state of the code we have is good enough to consider it as stable to be extracted.
2. decide a name for this new package. Gizra/robo-drupal-starter perhaps?
3. Convert each different trait into a Task.
4. Provide the composer.json structure to make those commands auto discoverable.
5. Use this new tasks in the main RoboFile.php

[mariano-dagostino]

I have explored this prompt with not successful results so far.

This project uses the robo.li framework to automate some tasks.
According to robo docs we can extract all the custom Traits we have
into a custom package, this way we can re-use the code across
serveral projects.  All relevant robo components live
under robo-components and the main class is RoboFile.php
The new commands should provide  a drop in replacement from the ones I already have.

Below are the docs from robo.li. Please diagram a
plan to refactor the current code.

A Robo tasks extension is created by advertising a Composer package of type robo-tasks on [Packagist](https://packagist.org/). For an overview on how this is done, see the article [Creating your very own Composer Package](https://knpuniversity.com/screencast/question-answer-day/create-composer-package). Specific instructions for creating Robo task extensions are provided below.
Create your composer.json File

Your composer.json file should look something like the example below:

{
    "name": "boedah/robo-drush",
    "description": "Drush CommandStack for Robo Task Runner",
    "type": "robo-tasks",
    "autoload": {
        "psr-4": {
            "Boedah\\Robo\\Task\\Drush\\": "src"
        }
    },
    "require": {
        "php": ">=5.5.0",
        "consolidation/robo": "~1"
    }
}

Customize the name and autoload paths as necessary, and add any additional required projects needed by the tasks that your extensions will provide. The type of your project should always be robo-tasks. Robo only supports php >= 5.5.0; you may require a higher version of php if necessary.