Log WARN if application specifies @RunAsPrincipal and not @RunAs

Log WARN if application specifies @RunAsPrincipal and not @RunAs

As per: https://docs.jboss.org/author/display/WFLY10/EJB+3+Reference+Guide

Specification of Run-as Principal using Metadata Annotations
...
Using this annotation without specifying a run-as role is considered an error.

For example:

@RunAs("admin")
@RunAsPrincipal("MyBean")

If a user specifies @RunAsPrincipal and not @RunAs (or the xml equivalent), then the user shows up as anonymous, we should log a warning to let the application know that there is an issue so that they know it needs to be corrected.