Add Apple Sparse Image Format (ASIF)

[Schamper]

Closes #60.

[codecov]

Codecov Report

❌ Patch coverage is 94.44444% with 6 lines in your changes missing coverage. Please review.
✅ Project coverage is 77.66%. Comparing base (2e2d0aa) to head (d343fce).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
dissect/hypervisor/disk/asif.py	94.17%	6 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #63      +/-   ##
==========================================
+ Coverage   76.80%   77.66%   +0.85%     
==========================================
  Files          24       26       +2     
  Lines        2100     2207     +107     
==========================================
+ Hits         1613     1714     +101     
- Misses        487      493       +6     

Flag	Coverage Δ
unittests	77.66% <94.44%> (+0.85%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.