Support tagged ZIP 32 child derivation for registered application protocols #88

Job	Run time
Intra-doc links	2m 18s
Clippy (MSRV)	2m 21s
Latest build on ubuntu-latest	20s
Build target wasm32-wasi	2m 26s
Latest build on windows-latest	53s
Rustfmt	13s
Latest build on macOS-latest	19s
Test on ubuntu-latest	2m 23s
Test on windows-latest	4m 3s
Test on macOS-latest	2m 46s
	18m 2s

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