Add RFC 2822 serde module #3118

Job	Run time
check-docs	22s
alternative_targets (ubuntu-latest, wasm32-unknown-emscripten)	54s
cross-targets (x86_64-unknown-illumos)	1m 50s
cross-tests (ubuntu-latest)	2m 35s
alternative_targets (ubuntu-latest, aarch64-apple-ios)	21s
alternative_targets (ubuntu-latest, aarch64-linux-android)	18s
features_check (ubuntu-latest)	5m 23s
no_std (ubuntu-latest, thumbv6m-none-eabi)	16s
no_std (ubuntu-latest, x86_64-fortanix-unknown-sgx)	35s
rust_msrv (ubuntu-latest)	1m 18s
rust_versions (ubuntu-latest, stable)	1m 36s
test_wasi (ubuntu-latest, wasm32-wasi)	1m 43s
rust_versions (ubuntu-latest, beta)	1m 9s
test_wasm (ubuntu-latest)	43s
rust_versions (ubuntu-latest, nightly)	1m 6s
timezones (ubuntu-latest, ACST-9:30)	1m 51s
timezones (ubuntu-latest, EST4)	1m 19s
timezones (ubuntu-latest, UTC0)	1m 17s
timezones (ubuntu-latest, Asia/Katmandu)	1m 32s
timezones (macos-latest, ACST-9:30)	42s
timezones (macos-latest, EST4)	49s
timezones (macos-latest, UTC0)	44s
timezones (macos-latest, Asia/Katmandu)	53s
timezones (windows-latest, ACST-9:30)	1m 53s
timezones (windows-latest, EST4)	2m 5s
timezones (windows-latest, UTC0)	1m 50s
timezones (windows-latest, Asia/Katmandu)	1m 47s
	36m 51s

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