core: clean up businessentity hashCode() methods [part 2]

Organize hashCode() methods into a consistent format and consistent
ordering with equals().  This will make field-by-field comparison and
maintenance easier.

Change-Id: If925715cc91c1b4a53a7f6d212ac51043412db53
Signed-off-by: Greg Padgett <gpadgett@redhat.com>