Remove GroupValidationResult

Remove GroupValidationResult

Removed GroupValidationResult, replacing it with BeanValidationResult.
Modified the ParameterGroup subclasses to use BeanValidator, adding
annotations where needed to trigger the validations that had been
automatically performed by GroupValidationResult.
Added Size annotation, used to verify minimum lengths of maps and
collections.
Added ClassName annotation, used to verify that a property contains the
name of a class that is actually in the classpath.
Added another addResult() method to make it easier when replacing calls
to GroupValidationResult setResult() method with BeanValidationResult.

Issue-ID: POLICY-2059
Change-Id: Id4da24886908723006624c5d53edeb034102299d
Signed-off-by: Jim Hahn <jrh3@att.com>