feat: add Eq when possible on PartialEq #981

Job	Run time
Clippy stable	55s
rustfmt	7s
Clippy beta	49s
Clippy nightly	50s
Features stable ubuntu-latest	4m 23s
Features stable macos-latest	3m 17s
Features stable windows-latest	7m 8s
Release x86_64-unknown-linux-gnu	46s
Features beta ubuntu-latest	4m 16s
Test stable ubuntu-latest	1m 2s
Release aarch64-unknown-linux-gnu	47s
Features beta macos-latest	3m 33s
Test stable macos-latest	55s
Release armv7-unknown-linux-gnueabihf	1m 6s
Features beta windows-latest	7m 30s
Release arm-unknown-linux-gnueabihf	50s
Test stable windows-latest	2m 6s
Release riscv64gc-unknown-linux-gnu	45s
Test beta ubuntu-latest	1m 7s
Release x86_64-apple-darwin	31s
Test beta macos-latest	57s
Release aarch64-apple-darwin	32s
Test beta windows-latest	2m 10s
Release x86_64-pc-windows-msvc	2m 1s
Test nightly ubuntu-latest	53s
Release aarch64-pc-windows-msvc	1m 5s
Test nightly macos-latest	53s
Test nightly windows-latest	2m 48s
	54m 2s

Provide feedback