* feat: add storage bucket resource
- Create a new resource for storage bucket
- Add examples and docs for how to use new resource
- Tests added but they do not run on purpose and have not been validated yet because we cannot run tests for enterprise features yet. That will be addressed separately
## Considerations
- Even though only AWS can be supported today, still added the `pluginID` & `pluginName` fields so it's easy to extend once other plugin types are supported
- There is some logic around handling secrets sent to Boundary and validating secret HMAC changes that exist from `boundary_host_catalog_plugin` that was introduced in [PR-159](https://github.com/hashicorp/terraform-provider-boundary/pull/159). Used the same logic we've been using for that
Elim Tsiagbey
9186304d5d