* NIFI-9883 Refactored property protection to isolated ClassLoader
- Added nifi-property-protection-loader for abstracting access to implementation classes using ServiceLoader
- Updated Authorizer and Login Identity Provider configuration using isolated ClassLoader
- Updated NiFi Properties Loader using isolated ClassLoader
- Updated nifi-assembly to place property protection dependencies in lib/properties directory
- Updated and refactored unit tests
- Corrected LoginIdentityProviderFactoryBean getObject() Type
exceptionfactory