chore: Move time stamp code into c2pa-crypto #3326

Job	Run time
Doc tests (requires nightly Rust) (windows-latest)	5m 40s
Enforce Rust code format	13s
Doc tests (requires nightly Rust) (macos-latest)	3m 57s
License / vulnerability audit (advisories)	26s
License / vulnerability audit (bans licenses sources)	22s
Doc tests (requires nightly Rust) (ubuntu-latest)	2m 0s
Clippy	1m 23s
Unit tests with minimum versions of direct dependencies (windows-latest)	2m 20s
Unit tests (windows-latest, stable)	3m 35s
Unit tests with minimum versions of direct dependencies (macos-latest)	1m 21s
Unit tests (windows-latest, 1.76.0)	5m 8s
Unit tests (aarch64-unknown-linux-gnu, stable)	4m 36s
Unit tests with minimum versions of direct dependencies (ubuntu-latest)	1m 4s
Unit tests (aarch64-unknown-linux-gnu, 1.76.0)	4m 39s
Unit tests (macos-latest, stable)	1m 30s
Unit tests (macos-latest, 1.76.0)	1m 46s
Unit tests (ubuntu-latest, stable)	1m 56s
Unit tests (WASM)	51s
Unit tests (ubuntu-latest, 1.76.0)	2m 6s
Preflight docs.rs build	2m 5s
Check for unused dependencies	2m 17s
	49m 15s

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