Add support get organization

[yhidetoshi]

Add Support organizations. Ref: https://docs.datadoghq.com/ja/api/v1/organizations/

[bkabrda]

Hey 👋 this client library has pretty much stopped active development. I suggest you check out the new datadog-api-client-go library [1] if you need this functionality. Despite datadog-api-client-go is still in beta, it's already fairly stable and we don't expect large changes to land at this point and it does support the functionality you're looking for - the Go code examples at the API docs page you referenced will show you the basic usage of this new library.

[1] https://github.com/DataDog/datadog-api-client-go/

[clarketm]

... this client library has pretty much stopped active development....

If this is the case, @zorkian can you please archive the repo so people do not continue to spend time on PRs that will not be merged?