KIP-331 — Add default implementation to close() and configure() for Serializer, Deserializer and Serde

Discussion Kafka 2.3 Client

Adds default (no-op) implementations to `Serializer.close()`, `Serializer.configure()`, `Deserializer.close()`, `Deserializer.configure()`, and their `Serde` equivalents as Java 8 default interface methods. Users implementing custom serdes are forced to write boilerplate no-op methods for lifecycle hooks they do not need.

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