Scenario Overview View about scenarioo

[bruderol]

initial view implemented by Beni.
Screenshots, tree structure etc. is work in progress

[bruderol]

Fixed REST services to generate pages and steps correctly (before each step had its own page).

Also improved transformator to generate all scenario steps in documentation files correctly.
Therefore to fully test this story, a new generated set of test data needs to be used.

[sandraweber]

Almost finished. Still need to:

• Show all details (page.details.properties, step.details.properties)
• Fix search