Implement a JUnit5 extensions for importing content into the repository prior to running a test. The extensions should allow to specify

• the content to import (from a file, literal or from a resource)
• the paths to import from and to
• the target workspace
• the import behaviour for UUIDs

The extension should make an effort to delete the content imported after the test concluded.

Implementation notes

• Consider using info.magnolia.importexport.DataTransporter for importing
• Update the documentation in magnolia-junit5-extensions.adoc