DataStream sending support and recv fixes #1446

Job	Run time
Build (x86_64-pc-windows-msvc)	7m 8s
Build (aarch64-pc-windows-msvc)	6m 15s
Build (x86_64-apple-darwin)	5m 40s
Build (aarch64-apple-darwin)	6m 32s
Build (aarch64-apple-ios)	5m 48s
Build (aarch64-apple-ios-sim)	5m 44s
Build (x86_64-unknown-linux-gnu)	3m 46s
Build (aarch64-unknown-linux-gnu)	4m 56s
Build (aarch64-linux-android)	3m 44s
Build (armv7-linux-androideabi)	4m 4s
Build (x86_64-linux-android)	4m 0s
	57m 37s

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