feat(rpc): Cookie auth system for the RPC endpoint #2079

Job	Run time
Install zebrad from lockfile without cache on ubuntu-latest	8m 42s
Test stable on ubuntu-latest	31m 59s
Test beta on ubuntu-latest	31m 43s
Check Cargo.lock is up to date	1m 25s
Check deny.toml bans	41s
Test stable on macos-latest	42m 33s
Check deny.toml bans --features default-release-binaries	47s
Test stable on windows-latest	59m 23s
Check for unused dependencies	20s
Check deny.toml bans --all-features	44s
Test beta on windows-latest	1h 0m 43s
Check deny.toml sources	41s
Check deny.toml sources --features default-release-binaries	39s
Check deny.toml sources --all-features	40s
Open or update issues for OS integration failures	0s
	4h 1m 0s

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