Add functions to evaluate a Sinsemilla hash from an initial private p… #160

Job	Run time
Bitrot check	2m 25s
Book tests	4m 28s
Build target wasm32-unknown-unknown	4m 40s
Test on ubuntu-latest	12m 1s
Build target wasm32-wasi	5m 44s
Test on windows-latest	14m 55s
Intra-doc links	5m 33s
Test on macOS-latest	13m 27s
Test on ubuntu-latest with beta features	12m 57s
Rustfmt	19s
Test on windows-latest with beta features	14m 20s
Test on macOS-latest with beta features	14m 22s
Test on ubuntu-latest with nightly features	17m 27s
Test on windows-latest with nightly features	15m 5s
Test on macOS-latest with nightly features	17m 37s
	2h 35m 20s

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