feat: implement dylib and entitlement hashing for macho

[latonis]

Implemented a macho similarity function dylib_hash() and entitlement_hash() which is similar to imphash or any other attribute hashing mechanism.

This will hash dylib entries as defined in https://github.com/g-les/macho_similarity/blob/main/implementation.md#dylib-hashing.

• I verified the hashing is consistent in both implementation and output by using python ~/src/macho_similarity/ktool_macho_bulk_hashing.py -f <macho>

I plan on implementing symtab_hash, import_hash, and export_hash in future PRs once I get each parsed out as well.

[latonis]

i will get this PR fixed up this weekend :)

[latonis]

Rust nightly channel is throwing up some weird compilation errors. Maybe a discussion for if nightly should be gated for the commits?

@plusvic, thoughts on nightly not being a gated check for tests?

[plusvic]

Rust nightly channel is throwing up some weird compilation errors. Maybe a discussion for if nightly should be gated for the commits?

@plusvic, thoughts on nightly not being a gated check for tests?

I agree, we could run tests with nightly once a day, just like we run the coverage tests.

[latonis]

@plusvic, this one is ready for review, the import and export parsing relies on me writing the trie parsing which requires uleb128 parsing among other things.

I think it would be good to get these two in for detection opportunities while I get the imports and exports parsed :)