Add examples for categories, protection policies, recovery plans

[pupo888]

Is your feature request related to a problem? Please describe.
At the time of this request there are a number of missing examples of how to use TF to accomplish various administrative tasks.

Describe the solution you'd like
Please add example files for missing areas. A few that come to mind are categories (add/update/delete), protection policies (add/update/delete), and recovery plans (add/update/delete, including features such as VM recovery stages, IP mapping (offset, static), network mapping).

Describe alternatives you've considered
Some of these examples exist for ansible but not for terraform.

Additional context
Additional examples will help with adoption. Examples should exist for both v3 and v4 API endpoints. v3 first as that is what is GA right now.