fix: put back impl Eq #48

Job	Run time
Check for test types	1s
clippy	16s
rustfmt	17s
Document generation	15s
Examples	0s
Benchmarks	0s
Test (ubuntu-latest, stable)	15s
Test (ubuntu-latest, stable, --all-features)	16s
Test (ubuntu-latest, stable, --no-default-features)	15s
Test (ubuntu-latest, beta)	16s
Test (ubuntu-latest, beta, --all-features)	17s
Test (ubuntu-latest, beta, --no-default-features)	16s
Test (ubuntu-latest, nightly)	19s
Test (ubuntu-latest, nightly, --all-features)	18s
Test (ubuntu-latest, nightly, --no-default-features)	15s
Test (windows-latest, stable)	1m 10s
Test (windows-latest, stable, --all-features)	54s
Test (windows-latest, stable, --no-default-features)	49s
Test (windows-latest, beta)	35s
Test (windows-latest, beta, --all-features)	43s
Test (windows-latest, beta, --no-default-features)	36s
Test (windows-latest, nightly)	45s
Test (windows-latest, nightly, --all-features)	51s
Test (windows-latest, nightly, --no-default-features)	34s
Test (macos-latest, stable)	24s
Test (macos-latest, stable, --all-features)	25s
Test (macos-latest, stable, --no-default-features)	24s
Test (macos-latest, beta)	23s
Test (macos-latest, beta, --all-features)	23s
Test (macos-latest, beta, --no-default-features)	22s
Test (macos-latest, nightly)	25s
Test (macos-latest, nightly, --all-features)	25s
Test (macos-latest, nightly, --no-default-features)	20s
Publish (dry-run) (email_address)	14s
Code Coverage (ubuntu-latest, stable)	1m 3s
Code Coverage (windows-latest, stable)	43s
Code Coverage (macos-latest, stable)	56s
	16m 40s

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