Migrating to the Terraform Plugin SDK.

[lazzurs]

Migrating to the Terraform Plugin SDK using the automated migration
tool. Build and tests pass.

[annakhm]

Hi @lazzurs, thanks for this PR!
We are planning a significant provider expansion in coming weeks, and it order to avoid merges, we'd rather migrate to to the sdk a bit later.

[lazzurs]

@annakhm I can understand that and had a similar issue with another provider. I am happy to either leave this open so I can update it when the changes have happened or close it and I can watch your provider for a new release and re-create then?

[annakhm]

@lazzurs I'm happy to keep it open for now. Hopefully this will be resolved soon.

[annakhm]

Hi @lazzurs,
We've landed the big commit, and it was easier to run the upgrade tooling from scratch on the extended repo. I opened another PR for migration https://github.com/terraform-providers/terraform-provider-nsxt/pull/210, thus closing this one. Thanks again for the effort!