Chain consumer execution using Consumer::andThen in LambdaMultipleChangeListenerHandler

Currently LambdaMultipleChangeListenerHandler maintains a list of all registered consumers. These consumers are executed in the order they are registered.

Since Consumer already supports chaining of method calls using Consumer::andThen, we should consider using it instead of maintaining a list of consumers.

The chained Consumer may be returned when unregistering change listener (JDK-8151617).