datacatalog: Added google_data_catalog_tag_template_iam_* (#4590)

Author: tmshn

mmv1/products/datacatalog/api.yaml

@@ -290,6 +290,12 @@ objects:
       guides:
         'Official Documentation': https://cloud.google.com/data-catalog/docs
       api: https://cloud.google.com/data-catalog/docs/reference/rest/v1/projects.locations.tagTemplates
+    iam_policy: !ruby/object:Api::Resource::IamPolicy
+      method_name_separator: ':'
+      fetch_iam_policy_verb: :POST
+      parent_resource_attribute: 'tag_template'
+      import_format: ["projects/{{project}}/locations/{{region}}/tagTemplates/{{tag_template}}", "{{tag_template}}"]
+      base_url: projects/{{project}}/locations/{{region}}/tagTemplates/{{tag_template}}
     parameters:
       - !ruby/object:Api::Type::String
         name: region

mmv1/products/datacatalog/terraform.yaml

@@ -84,6 +84,7 @@ overrides: !ruby/object:Overrides::ResourceOverrides
       - !ruby/object:Provider::Terraform::Examples
         name: "data_catalog_tag_template_basic"
         primary_resource_id: "basic_tag_template"
+        primary_resource_name: "fmt.Sprintf(\"tf_test_my_template%s\", context[\"random_suffix\"])"
         vars:
           tag_template_id: "my_template"
           force_delete: "false"