Test more features on the test Studio project

Customize a project using features available on 5.5 and 5.6.
We want a first minimal set of things tested:

New document type:

• Check presence of two metadata in create layout
• check presence of two metadata in edit layout
• check presence of two metadata in view layout
• check draft lifecycle is the good one (in the studio a custome one was created and assigned to the document type, so we need to check the state is the inital one)

• Search screen customization: check there is the presence of the fields that were displayed
• User action and automation : check that the hello world button is present, and that when clicked, the title of the document created before has been updated to "hello world".
• Vocabulary: let's add a vocabulary widget in the type created, and make sure it is in the creation screen
• Custom tab: addition of a custom tab that displays just a header widget first, in order to see that the tabcontribution works.
• Content view: addition of a content view in the tab, we can put a quiery that displays the current document (useless to create another document here).