Add VNC capabilities to oneprovision clusters

[tinova]

Description

VMs deployed on provisioned clusters cannot be accesses through VNC.

Use case

Opening a VNC port to the wild is not a good idea. This needs to be channeled through an encrypted medium.

Progress Status

• [ ] Branch created
• [ ] Code committed to development branch
• [ ] Testing - QA
• [ ] Documentation
• [ ] Release notes - resolved issues, compatibility, known issues
• [ ] Code committed to upstream release/hotfix branches
• [ ] Documentation committed to upstream release/hotfix branches