Add methods for validating aspects of PCZT bundles #3267

Job	Run time
Book tests	15s
Latest build on ubuntu-latest	50s
Build target wasm32-wasi	1m 28s
Latest build on windows-latest	2m 38s
Test on ubuntu-latest	10m 4s
Latest build on macOS-latest	1m 5s
Test on windows-latest	12m 1s
Bitrot check	2m 2s
Test on macOS-latest	7m 24s
Code coverage	8m 48s
Intra-doc links	2m 15s
Rustfmt	15s
	49m 5s

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