feat(hydroflow_plus_std): extract initial Hydroflow+ utilities into a… #958

Job	Run time
pre_job	5s
linux (x86_64-unknown-linux-gnu)	3m 32s
linux-cross (aarch64-unknown-linux-gnu, aarch64)	3m 40s
linux-cross (armv7-unknown-linux-gnueabihf, armv7)	4m 31s
linux (i686-unknown-linux-gnu)	4m 30s
macos-universal (universal2-apple-darwin)	4m 32s
windows (x86_64-pc-windows-msvc, x64)	9m 17s
windows (i686-pc-windows-msvc, x86)	10m 52s
windows (aarch64-pc-windows-msvc, x64)	10m 50s
Release	0s
	51m 49s

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