Implement FromDer for bool #602

Job	Run time
Clippy	14s
Measure coverage	1m 11s
Check cross compilation targets	58s
Cargo Package	11s
Cargo Deny	14s
MSRV	1m 34s
Check for documentation errors (stable)	11s
Check for documentation errors (beta)	28s
Check for documentation errors (nightly)	24s
Check semver compatibility	1m 10s
Format	11s
Build+test (--all-features, stable)	36s
Build+test (stable, ubuntu-20.04)	28s
Build+test (--features=alloc, stable, ubuntu-20.04)	35s
Build+test (--no-default-features, stable, ubuntu-20.04)	27s
Build+test (--all-features, --release, stable, ubuntu-20.04)	2m 14s
Build+test (--all-features, nightly, ubuntu-20.04)	38s
Build+test (--all-features, beta, ubuntu-20.04)	37s
	12m 21s

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