Create a Util to facilitate saving and deleting ConfigAdmin configurations during tests

• Type: Task
• Status: Closed
• Priority: Minor
• Resolution: Completed
• Affects Version/s: None
• Fix Version/s: Master
• Component/s: Portal Services > Configuration Management
• Labels: None
• Priority Level: Low
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/54528

Since updating and deleting configurations are asynchronous operations, they are difficult to use in a test scenario as random failures can occur.  This util will provide a safe way to perform those operations inside of a test.