[Tests] Creating the PHPUnit.xml file
[Tests] Creating the bootstrap file
[Tests] Creating the Application::__construct test
[Tests] Moving boostrap in tests
[Tests] Testing the run method
[Tests] Refactoring to 1 assert per test
[Tests] Testing the logger in Output
[Tests] Testing the console output in Output
[Tests] testing a simple run of the application
[Tests] Refactoring the help
[Tests] Testing the option version
Merge branch 'feature/tests' into develop