Parameters objects now implement multiple interfaces.

The proxy objects created by Parameters now not only implement one single
parameters interface but also all logic base interfaces. This can be used to
apply certain logic based on their inheritance structure.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/configuration/trunk@1545072 13f79535-47bb-0310-9956-ffa450edef68