Hide exposed repositories

What does this MR do (summary)?

• hide exposed rest repositories

What changes have you made (detailed)?

• add RepositoryRestConfig (copy from Queue2)

Does this MR meet the acceptance criteria?

• The main application was run to make sure the server still runs without errors.
• Tests were written to verify the behaviour of this code.
• Javadoc and other comments were added to make the code understandable.
• The code adheres to the style guidelines.