Paulo&Michal: pages and benefit_pages moved to separate file
Paulo&Michal: introduced generic step for submitting form on pages. Replaced employment details step with submitting form step.
Paulo&Michal: Replaced posting benefit forms by new submitting form step
Paulo&Michal: Introduced new submitting form step in remaining tests
Paulo&Michal: wage details and wage hours test use generic steps
Merge pull request #235 from InsolvencyService/post_steps_unified

Post steps unified