Add JGit CredentialsProvider based on Plexus Interactivity API

Currently the JGit provider does not provide interactive communication means, e.g. for asking for a password or adding a new server to the known hosts. There should be an implementation for https://javadoc.io/static/org.eclipse.jgit/org.eclipse.jgit/5.13.1.202206130422-r/org/eclipse/jgit/transport/CredentialsProvider.html backed by Plexus's Prompter component (https://codehaus-plexus.github.io/plexus-interactivity/plexus-interactivity-api/apidocs/org/codehaus/plexus/components/interactivity/Prompter.html).