Updating test cases in cycle folder through zephyr API

Currently https://zfjcloud.docs.apiary.io/#reference/execution/get-list-of-linked-executions-to-issue/update-execution when update execution it can only update the test in cycle. When there are folders inside the cycles and have test inside it there is no way to update it. This is feature which is required when there are large no of test cases. It is required for test executions through API.