Use a Factory pattern & interface for the ProcessState

## Description

The goal is to allow the override of the ProcessState object for a custom project.
Example : use it to inject some globally available object instance (like a ConsoleOutputInterface).

## Requirements

* Documentation updates
  - [ ] Reference
  - [ ] Cookbooks
  - [ ] Changelog
* [ ] Unit tests 

## Breaking changes

Major : need to change the tasks interfaces
