Submitting VPN work

[nvibert]

[vmwclabot]

@nvibert, you must sign every commit in this pull request acknowledging our Developer Certificate of Origin before your changes are merged. This can be done by adding Signed-off-by: John Doe <[email protected]> to the last line of each Git commit message. The e-mail address used to sign must match the e-mail address of the Git author. Click here to view the Developer Certificate of Origin agreement.

• Commit 5f5d01c2c67d2a6c90b70a3e1ddd0f5ec793a306 must be signed by [email protected]
• Commit 07345d98c818477f2915a7eb2e6771c1bb5fd8ee must be signed by [email protected]
• Commit b7cb59e48874eaeddf12556dab38053a4734f99d must be signed by [email protected]

[annakhm]

Closing this as per https://github.com/vmware/terraform-provider-nsxt/pull/773 Thank you for you contribution @nvibert!