KIP-300 — Add Windowed KTable API in StreamsBuilder

Accepted Streams

Adds StreamsBuilder#table() overloads that materialize a windowed changelog topic into a windowed KTable backed by either a persistent or in-memory windowed state store. Kafka Streams had no DSL method to consume a pre-existing windowed changelog topic (e.g., output of another Streams app) directly into a local windowed store for downstream join or query operations.

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