Implementation of docker network create

[amandafeng001]

User Statement:

As a VIC user, I want to be able to use docker network create to create NSX micro-segmented networks.

Details:

Depends on investigation work in #4097. Sized at 5, but may need to change.

Integrate NSX micro-segmentation via docker network create:

1. port layer code change:
   • instead of create scopes, make api calls to VMOMI sdk to create NSX security groups, security policies.
   • state storage
2. VMOMI:
   • add NSX support to fit our needs in achieving 'docker network create' in VMOMI
   • expose the API so port layer can use to call

Acceptance Criteria: An Implementation which provides 'docker network create', which isolates container networks.

[mhagen-vmware]

Please assign a priority to this.