CLI support for installing artifacts in a server

Add a CLI command to provision artifacts to a server's lib.
This should support:

• maven artifacts, like org.postgresql:postgresql:42.3.1
• URLs (http, https, ftp) with support for redirections
• Local files

Downloaded files should be cached locally: Maven artifacts in the local maven repository, other artifacts in java.tmpdir/infinispan/cache
Also there should be a way to add checksums for verification.