Impl From for SslVersion #841

Job	Run time
clippy	3m 35s
Cross build from macOS to Linux (x86_64-unknown-linux-gnu)	1m 45s
rustfmt	12s
Cross build from macOS to Linux (FIPS) (x86_64-unknown-linux-gnu)	6m 22s
Test features	6m 55s
Test (stable)	2m 11s
Test FIPS integration	3m 0s
Test (arm-android)	1m 57s
Test (arm64-android)	2m 21s
Test (i686-android)	1m 58s
Test (x86_64-android)	2m 12s
Test (aarch64-ios)	2m 23s
Test (aarch64-ios-sim)	2m 14s
Test (x86_64-ios)	2m 15s
Test (i686-linux)	2m 23s
Test (arm-linux)	2m 21s
Test (aarch64-linux)	2m 23s
Test (arm64-macos)	2m 10s
Test (x86_64-macos)	2m 12s
Test (x86_64-mingw)	6m 49s
Test (i686-msvc)	6m 12s
Test (x86_64-msvc)	7m 57s
	1h 11m 47s

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