ipatests: Test cases for healthcheck File checker(s)
    
    These check for modified file ownership (user and group) and
    too permissive and restrictive permissions across the three
    types of files checked by the healthcheck FileCheck.
    
    This replaces an existing test for TomcatFileCheck which adds
    more functionality and consolidates all file checks together.
    
    Signed-off-by: Rob Crittenden <rcritten@redhat.com>
    Reviewed-By: Mohammad Rizwan <myusuf@redhat.com>