Create create virtual box OVF file

[tomuben]

Background

It turned out that virtual box configuration can be quit error prone.
We should add a build step which generates automatically an OVF file, which

• Downloads the VMDK image
• Generates a new OVF with pre-default configuration
• Uploads the OVF to the S3 Bucket

This can be achieved using virtual box CLI:

• https://www.virtualbox.org/manual/UserManual.html#vboxmanage)
• https://www.virtualbox.org/manual/UserManual.html#vboxmanage-export

Acceptance Criteria

1. Create a build step which downloads the VMDK image generates the OVF (the virtual box config can be a Jinja template) using Virtual Box CLI
2. Call this step in the Release Code Build (install dependencies in the AWS buildspec).