Provide CA EE Restful interface and test client.
Tickets #144 and #145
Providing the following:
1. Simple EE restful interface for certificates, printing, listing and searching.
2. Simple EE restful interface for certificate enrollment requests.
3. Simple EE restful interface for profiles and profile properties.
4. Simple Test client to exercise the functionality.
5. Created restful client base class inherited by CARestClient and DRMRestClient.
6. Provide simple restful implementations of new interfaces added.
ToDO: Need some more refactoring to base classes for some of the new classes which are
similar to classes
in the DRM restful area.
ToDO: Actual certificate enrollment code that will be refactored from existing
ProfileSubmitServlet.