Add http routes for add/remove search attributes

;5u

Author: Alex-Tideman

temporal/api/operatorservice/v1/service.proto

@@ -25,12 +25,26 @@ service OperatorService {
     // Returns ALREADY_EXISTS status code if a Search Attribute with any of the specified names already exists
     // Returns INTERNAL status code with temporal.api.errordetails.v1.SystemWorkflowFailure in Error Details if registration process fails,
     rpc AddSearchAttributes (AddSearchAttributesRequest) returns (AddSearchAttributesResponse) {
+        option (google.api.http) = {
+            post: "/cluster/namespaces/{namespace}/search-attributes"
+            body: "*"
+            additional_bindings {
+                post: "/api/v1/namespaces/{namespace}/search-attributes"
+                body: "*"
+            }
+        };
     }
 
     // RemoveSearchAttributes removes custom search attributes.
     //
     // Returns NOT_FOUND status code if a Search Attribute with any of the specified names is not registered
     rpc RemoveSearchAttributes (RemoveSearchAttributesRequest) returns (RemoveSearchAttributesResponse) {
+        option (google.api.http) = {
+            delete: "/cluster/namespaces/{namespace}/search-attributes"
+            additional_bindings {
+                delete: "/api/v1/namespaces/{namespace}/search-attributes"
+            }
+        };
     }
 
     // ListSearchAttributes returns comprehensive information about search attributes.