[MDL-36269] META: Create basic steps and steps definitions - Moodle Tracker

Pull from Repository:
git://github.com/dmonllao/moodle.git
Pull Master Branch:
~~MDL-36269~~_master
Pull Master Diff URL:
https://github.com/dmonllao/moodle/compare/master...MDL-36269_master

A basic set of steps definitions (and associated tests) must be created to speed up the creation of other features files

will help resolve

MDL-35611 META: BDD in Moodle

1.	Add behat hooks to behat processes	Closed	David Monllaó
2.	Add steps definition for general navigation and forms manipulation	Closed	David Monllaó
3.	Add data generators to quickly set up the initial environment required by tests	Closed	David Monllaó
4.	Add steps definitions to add activities to courses	Closed	David Monllaó
5.	Add a step definitions to add blocks	Closed	David Monllaó
6.	Ensure elements are available	Closed	David Monllaó

META: Create basic steps and steps definitions