Implement `dex` module #576

Job	Run time
Clippy	34s
Deny	19s
Coverage	1m 19s
Test features --no-default-features	1m 12s
Test features --no-default-features --features=hash	53s
Rust 1.65.0	1m 47s
Test features --no-default-features --features=object	57s
Rustfmt	11s
Test features --no-default-features --features=process	51s
Test linux	1m 47s
Test features --no-default-features --features=hash,object	50s
Test linux32	1m 29s
Test features --no-default-features --features=object,authenticode	53s
Test Macos 12	3m 11s
Test features --all-features	1m 0s
Test windows	4m 6s
Test windows32	4m 38s
	25m 57s

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