Add logging to print the implementation class of AccessControlEnforcer, print ACEnforcer when AccessControlException occurs.

As we know, when Ranger authentication is enabled in the HDFS, if Ranger authentication fails to match, it is degraded to the FSPermissionChecker authentication of the HDFS ACL.

If an ACE occurs, it is not clear whether it comes from Ranger authentication or FSPermissionChecker authentication. So I think we should add a description of AccessControlEnforcer to the ACE exception description to help locate the problem.