fix(consensus): Verify consensus branch ID in SIGHASH precomputation #2418

Job	Run time
Check deny.toml bans	45s
Check Cargo.lock is up to date	1m 21s
Check deny.toml bans --features default-release-binaries	46s
Check deny.toml bans --all-features	52s
Install zebrad from lockfile without cache on ubuntu-latest	8m 56s
Check deny.toml sources	45s
Check deny.toml sources --features default-release-binaries	45s
Check deny.toml sources --all-features	47s
Test stable on ubuntu-latest	22m 1s
Test beta on ubuntu-latest	22m 6s
Check for unused dependencies	19s
Test stable on macos-latest	26m 20s
Test stable on windows-latest	51m 36s
Test beta on windows-latest	53m 6s
Open or update issues for OS integration failures	0s
	3h 10m 25s

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