Add methods for validating aspects of PCZT bundles #3260

Job	Run time
Bitrot check	2m 5s
Book tests	14s
Latest build on ubuntu-latest	54s
Build target wasm32-wasi	1m 22s
Latest build on windows-latest	3m 2s
Code coverage	9m 5s
Intra-doc links	2m 11s
Latest build on macOS-latest	1m 9s
Rustfmt	13s
Test on ubuntu-latest	10m 1s
Test on windows-latest	11m 34s
Test on macOS-latest	8m 39s
	50m 29s

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