stream: reduce pipe overhead

sync writes don't need drain (stream: sync writes don't need drain #29087)
pipe lazy drain (stream: pipe lazy drain #29095)
don't emit drain if ended (stream: don't emit drain if ended #29086)
don't register onclose listener
lazy create buffering objects
avoid buffering in sync streams
avoid/reduce buffering when passing data through a stream and the sink already has sufficient buffering.

Moved into meta document

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