Expose various APIs necessary for certificate selection logic #800

Job	Run time
rustfmt	9s
Cross build from macOS to Linux (x86_64-unknown-linux-gnu)	2m 40s
clippy	1m 17s
Cross build from macOS to Linux (FIPS) (x86_64-unknown-linux-gnu)	4m 44s
Test features	6m 12s
Test FIPS integration	3m 6s
Test (stable)	2m 37s
Test (arm-android)	2m 26s
Test (arm64-android)	1m 54s
Test (i686-android)	2m 23s
Test (x86_64-android)	1m 55s
Test (aarch64-ios)	5m 29s
Test (aarch64-ios-sim)	3m 56s
Test (x86_64-ios)	3m 48s
Test (i686-linux)	2m 17s
Test (arm-linux)	3m 8s
Test (aarch64-linux)	2m 19s
Test (arm64-macos)	2m 14s
Test (x86_64-macos)	3m 49s
Test (x86_64-mingw)	4m 27s
Test (i686-msvc)	4m 46s
Test (x86_64-msvc)	6m 59s
	1h 12m 35s

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