perf: replace vote state tuples with named structs and improve deser #4690

Job	Run time
android (ubuntu-20.04, x86_64-linux-android)	2m 38s
ios (macos-12, aarch64-apple-ios)	3m 16s
android (ubuntu-20.04, aarch64-linux-android)	2m 34s
ios (macos-12, x86_64-apple-ios)	3m 10s
android (ubuntu-20.04, i686-linux-android)	2m 44s
ios (macos-12, aarch64-apple-darwin)	3m 14s
android (ubuntu-20.04, armv7-linux-androideabi)	2m 53s
ios (macos-12, x86_64-apple-darwin)	4m 7s
error_reporting	0s
	24m 36s

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