added vpn (and tests), fixed error for dds resource, updated docs (ne…

[0ohmresistor]

…twork ACL rule and ELB listener)

What this PR does / why we need it:

Added objects:

• ....

Updated objects:

• ...

PR Checklist

• [ ] Tests added/passed.
• [ ] Documentation updated.
• [ ] Schema updated.

Acceptance Steps Performed