Add bytes intern pool to reduce memory consumption #660

Job	Run time
Coverage	1m 42s
Test features --no-default-features	1m 6s
Test features --no-default-features --features=hash	1m 3s
Clippy	1m 1s
Deny	17s
Test features --no-default-features --features=object	1m 7s
Rust 1.65.0	2m 13s
Test features --no-default-features --features=process	1m 6s
Test features --no-default-features --features=hash,object	1m 5s
Rustfmt	12s
Test linux	2m 6s
Test features --no-default-features --features=object,authenticode	1m 4s
Test Macos 12	3m 18s
Test linux32	1m 52s
Test features --no-default-features --features=object,authenticode,authenticode-verify	1m 37s
Test features --all-features	1m 17s
Test windows	3m 51s
Test windows32	4m 31s
	30m 28s

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