Add certification tool to docker image
Add certification tool to docker image

- Supports generating compatibility receipts to be published to S3

[#111543866](https://www.pivotaltracker.com/story/show/111543866)

cloudfoundry-incubator/bosh-vcloud-cpi-release,cloudfoundry-incubator/bosh-vcloud-cpi-release,cloudfoundry-incubator/bosh-vcloud-cpi-release