PLACEHOLDER: Support services/classes design.

## Do not merge!

This PR is meant to highlight the suggested design/packaging for implementing functionality for Provider Support services such as opening, closing, and replying to support tickets.
I think we should remove this interface/implementation and move ```SupportService``` to [PlatformServices](https://github.com/TheWeatherCompany/dasein-cloud-core/blob/92a8fc01c09e3665556d323d49f0c4bf885bafaa/src/main/java/org/dasein/cloud/platform/PlatformServices.java).