Support for defining folders where container VM's will be created in.

[marvaini]

#For stories, please include the information below:

User Statement:

As admin I want to organize the container (and vCH) VMs created by VIC better. When creating a new container host, I want to define the VM folder, into which the vCH VM and container VMs created by this vCH will be created into. I want vic-machine-* to create and delete the folder for me with the vCH.

Details:
Any details of what you want that might clarify for the developer how to approach the implementation.

Acceptance Criteria:

1. vic-machine-* create --vmfolder: will create a VM folder once creating a vCH. The tool will also place the vCH VM into the same folder.
2. All container VM created by this vCH will be placed under the same folder.
3. vic-machine-* delete will also delete the related VM folder.

#For bug reports, please include the information below:

VIC version:

x.y.z / master / commit ID

Deployment details:

What was the vic-machine create command used to deploy the VCH?

Steps to reproduce:

Actual behavior:

Expected behavior:

Logs:

• If you can access the VCH Admin portal, please download and attach the log bundle(s). See https://vmware.github.io/vic/assets/files/html/vic_admin/log_bundles.html for details.
• If the VCH Admin portal is inaccessible, you can enable SSH to the VCH endpoint VM to obtain logs manually. See https://vmware.github.io/vic/assets/files/html/vic_admin/vch_ssh_access.html for details. The VCH logs will be under /var/log/vic/ on the VM.

Additional details as necessary:

[dougm]

Duplicate of #3619