Update toolbox project to use new vCO 5.5.1 SDK.

* Cleanup pom files to support SDK changes.

* Code clean up to support SDK changes.

* VcoClientFactory is now considered internal, removing access to
  the ability for UserInteractions.

* Refactor the package hierarchy

* Add generic EndpointManager

* Add mapping to IEndpointConfiguration.
Merge pull request #2 from jbweber/update_551

Update toolbox project to use new vCO 5.5.1 SDK.