MLECO-6638: Improve error handling at JNI level
- Add logger helper functions and change logging to uniform method.
- Control framework's logging through llm module's cmake wrapper.
- Add more tests to validate config settings
Change-Id: Ie4f3efd456df0f3e7ec24cb39a48439260870b29 Signed-off-by: Govind Narasimman govind.narasimman@arm.com