feat(proxy): plain hysteria2 #2412

Job	Run time
x86_64-unknown-linux-gnu	1s
i686-unknown-linux-gnu	1s
x86_64-unknown-linux-musl	1s
x86_64-unknown-linux-gnu-static-crt	1s
i686-unknown-linux-gnu-static-crt	1m 24s
aarch64-unknown-linux-gnu	3m 38s
armv7-unknown-linux-gnueabi	3m 0s
armv7-unknown-linux-gnueabihf	3m 55s
aarch64-unknown-linux-musl	4m 5s
armv7-unknown-linux-musleabihf	3m 37s
aarch64-unknown-linux-gnu-static-crt	3m 55s
armv7-unknown-linux-gnueabi-static-crt	3m 29s
x86_64-pc-windows-msvc	3m 55s
i686-pc-windows-msvc	4m 7s
aarch64-pc-windows-msvc	4m 8s
x86_64-pc-windows-msvc-static-crt	3m 58s
i686-pc-windows-msvc-static-crt	3m 58s
aarch64-pc-windows-msvc-static-crt	4m 13s
x86_64-apple-darwin	4m 44s
aarch64-apple-darwin	4m 18s
x86_64-apple-darwin-static-crt	4m 23s
aarch64-apple-darwin-static-crt	4m 23s
Release	1s
Docker Image	1s
	1h 9m 16s

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