Add own module group and migrate old menu to different modules.
This should improve user experience as most users are used to modules
and are not aware of the dropdown menu.
Rename Overview controller to Configuration controller
As it handled configurations.
This streamlines with labels and identifiers.
Import Configuration can now be stored on folders, beside the site root.
That way editors can create and edit records.
The default storage pid for new records can be defined via TypoScript.
Resolves: #24
Allows to import entity of type TouristAttraction.
Right now only in German, as this is most important.
Add output of tourist attraction via custom content element.
