Update to Minizip 1.2

[fpseverino]

• Update vendored Minizip library to v1.2
• Move files to respect SPM folder structure
• Add round-tripping test (Round-tripping fails #4)
• Add DocC catalog
• Improve code to use new features from Swift 5.8+

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.14%. Comparing base (f4161af) to head (7954635).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main       #5      +/-   ##
==========================================
+ Coverage   95.90%   96.14%   +0.24%     
==========================================
  Files           6        7       +1     
  Lines         366      337      -29     
==========================================
- Hits          351      324      -27     
+ Misses         15       13       -2     

Files	Coverage Δ
Sources/Zip/ArchiveFile.swift	100.00% <100.00%> (ø)
Sources/Zip/Date+dosDate.swift	100.00% <100.00%> (ø)
Sources/Zip/QuickZip.swift	100.00% <100.00%> (ø)
Sources/Zip/Zip.swift	93.36% <100.00%> (ø)
Sources/Zip/ZipCompression.swift	100.00% <ø> (ø)
Sources/Zip/ZipError.swift	100.00% <ø> (ø)
Sources/Zip/ZipUtilities.swift	100.00% <ø> (ø)