Add Kape VHDX loader

[qmadev]

This PR adds a new loader to map a Kape VHDX file to a Target. The previous implementation only worked on directories created by Kape, but there is also an option to store the collected data in a VHDX file.

Never wrote a loader before so I'm not sure if this is the way to go.

[Schamper]

Thanks for the contribution! I've not looked at the Kape VHDX format myself yet, but how similar is the directory structure to that of a Kape "directory"? If it matches, the logic could be simplified and re-use the existing Kape directory loading code. (Loaders and the directory filesystem also work on TargetPath objects, paths that come from within a Dissect opened filesystem)

[qmadev]

Thanks for the tip! The directory structure is the same so I changed the code to use a TargetPath object.

[codecov]

Codecov Report

Attention: Patch coverage is 92.59259% with 2 lines in your changes missing coverage. Please review.

Project coverage is 77.93%. Comparing base (385512c) to head (809e193).
Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
dissect/target/loaders/kape.py	92.59%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #993      +/-   ##
==========================================
+ Coverage   77.77%   77.93%   +0.15%     
==========================================
  Files         327      327              
  Lines       28659    28677      +18     
==========================================
+ Hits        22290    22349      +59     
+ Misses       6369     6328      -41     

Flag	Coverage Δ
unittests	77.93% <92.59%> (+0.15%)	⬆️

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