Implement `dex` module #577

Job	Run time
Deny	20s
Test features --no-default-features	52s
Coverage	1m 22s
Test features --no-default-features --features=hash	53s
Clippy	32s
Test features --no-default-features --features=object	58s
Test features --no-default-features --features=process	52s
Rust 1.65.0	1m 43s
Test features --no-default-features --features=hash,object	58s
Rustfmt	10s
Test features --no-default-features --features=object,authenticode	53s
Test linux	1m 32s
Test features --all-features	56s
Test linux32	1m 31s
Test Macos 12	7m 2s
Test windows	4m 32s
Test windows32	4m 34s
	29m 40s

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