NIFI-5540 Added failing unit test and ignored regression test to demonstrate missing default sensitive properties key in flow election encryptor creation.
NIFI-5540 Added equality logic to StringEncryptor and utility equality methods to CryptoUtils.
NIFI-5540 Added default sensitive properties key population logic and log warning to StringEncryptor.
NIFI-5540 Cleaned up formatting.
NIFI-5540 Cleaned up boolean logic.
NIFI-5540 Added Javadoc to StringEncryptor.
NIFI-5540 Added unit test for StringEncryptor#equals().
NIFI-5540 Added performance benchmarking unit tests for constantTimeEquals methods for String, byte[], and char[].
NIFI-5540 Fixed checkstyle issue.
NIFI-5540 Fixed unit tests for default key population.
This closes#2959.
Signed-off-by: Bryan Bende <bbende@apache.org>