Add windows credhist plugin

[JSCU-CNI]

This PR adds support for decrypting CREDHIST entries on Windows targets.

Currently supports decrypting full and partial CREDHIST chains and can tell you if the decryption worked or not. Does not (yet) provide decrypted SHA1 hashes to the DPAPI plugin. Perhaps @cobyge can tell us where it's best to implement this.

[cobyge]

RE: Passing the output to DPAPI,
There are a few options I can think of:

1. I could add support to the DPAPI plugin to read from the "keychain"
2. I could try to call the CREDHIST plugin from the DPAPI plugin.

I think I'd prefer the first option, as it is a nice way to interface credentials between plugins, but I'd like to hear one of the maintainers thoughts about this first.

[Schamper]

@cobyge option 1 is at least preferred for providing the "initial"/current password, as is currently in review in #541. While it would be nice, I don't immediately see a nice way how CREDHIST could provide passwords to the keychain (it would need to be invoked somehow). You could make something similar to how we have "child plugins", i.e. "keychain plugins" and bind a keychain to a target (instead of being global right now). But that feels a bit overkill, at least for the moment where we would only have a single plugin for it.

I'm more than happy to hear some ideas for this, but for complexity sake, option 2 might otherwise be preferred.

[Schamper]

Can you also rebase onto main.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 97.08738% with 3 lines in your changes are missing coverage. Please review.

Project coverage is 73.37%. Comparing base (2c14aa5) to head (c45be8b).

Files	Patch %	Lines
dissect/target/plugins/os/windows/credhist.py	97.08%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #566      +/-   ##
==========================================
- Coverage   74.99%   73.37%   -1.63%     
==========================================
  Files         288      289       +1     
  Lines       24192    24295     +103     
==========================================
- Hits        18143    17826     -317     
- Misses       6049     6469     +420     

Flag	Coverage Δ
unittests	73.37% <97.08%> (-1.63%)	⬇️

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