archetype-catalog.xml is imported by import task to a maven repository

The archetype-catalog.xml file served from the root of a Maven repository is typically a generated file from maven metadata. However the Import task tries to import this file into a hosted repo.

Expected

Block importing archetype-catalog.xml to the root of a repository, with appropriate log message explaining why it was ignored. Instead NXRM should rely on the appropriate metadata rebuild tasks inside NXRM to generate this file dynamically for stored content, like normal operations do.