New test for EZP-23288: Allow to set modifier of Content Versions & ContentType

#### New test for EZP-23288: Allow to set modifier of Content Versions & ContentType

This test a new user is create, inside Administrator User Group, and creates a new draft for a ContentType https://jira.ez.no/browse/EZP-23288
From what I can see this is to be expected, as @joaoinacio mentioned on issue, editing a draft is limited to the modifier. So to get the test to work you would have to change current user .

However given users might also stumble on this I guess this feature should be reverted.