Let the `Monitor` intercept `log4j`

[paullatzelsperger]

The Apache Atlas client library comes with log4j (unfortunately), so we need to write a logging interceptor for it. The same thing has already been done for SLF4J (cf. MonitorProvider)

[jimmarino]

The Atlas library looks like it brings in half the internet in dependencies. Does it really help us or would a simple REST client suffice?

[paullatzelsperger]

The Atlas library looks like it brings in half the internet in dependencies. Does it really help us or would a simple REST client suffice?

I think we can do without the API client, since it's only a wrapper around REST calls anyway.