Add basic support for Subject Alternative Name OtherName #903

Job	Run time
build-windows	9m 25s
build-windows	9m 25s
build (macOS-latest, stable)	4m 28s
build (macOS-latest, stable)	1m 36s
Build rustls-cert-gen as a standalone package	33s
Build rustls-cert-gen as a standalone package	33s
build (ubuntu-latest, stable)	5m 36s
build (ubuntu-latest, stable)	5m 36s
Validate external types appearing in public API	1m 14s
Validate external types appearing in public API	1m 14s
build (ubuntu-latest, beta)	5m 29s
build (ubuntu-latest, beta)	5m 29s
build (ubuntu-latest, nightly)	5m 28s
build (ubuntu-latest, nightly)	5m 28s
Measure coverage	32s
Measure coverage	32s
build (ubuntu-latest, stable 7 months ago)	38s
build (ubuntu-latest, stable 7 months ago)	38s
Clippy (--all-features)	4m 47s
Clippy (--all-features)	4m 47s
Clippy (--no-default-features)	4m 54s
Clippy (--no-default-features)	4m 54s
Documentation (stable)	36s
Documentation (stable)	36s
Documentation (beta)	43s
Documentation (beta)	43s
Clippy (--no-default-features --features ring)	4m 44s
Clippy (--no-default-features --features ring)	4m 44s
Format	4s
Format	4s
Check semver compatibility	34s
Check semver compatibility	34s
Documentation (nightly)	40s
Documentation (nightly)	40s
Documentation (stable 7 months ago)	47s
Documentation (stable 7 months ago)	47s
Clippy (--no-default-features --features aws_lc_rs)	5m 3s
Clippy (--no-default-features --features aws_lc_rs)	5m 3s
Clippy (--no-default-features --features aws_lc_rs,pem)	4m 51s
Clippy (--no-default-features --features aws_lc_rs,pem)	4m 51s
	1h 59m 20s

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